A concrete block , also known as a cinder block in North American English , breeze block in British English , concrete masonry unit ( CMU ), or by various other terms , is a standard-size rectangular block used in building construction . The use of blockwork allows structures to be built in the traditional masonry style with layers (or courses) of staggered blocks.
109-479: Linwood Earl Briley , James Dyral “J. B.” Briley Jr. , and Anthony Ray Briley were a sibling trio of serial / spree killers , rapists , and robbers who were responsible for a murder, rape, and robbery spree that took place in Richmond , Virginia , in 1979. Linwood murdered a woman in 1971 and served a year in a reformatory. In 1979, the three siblings (with help from an accomplice, Duncan Eric Meekins) went on
218-606: A Serienmörder ('serial-murderer') in his article " Die Düsseldorfer Sexualverbrechen " (1930). In his book, Serial Killers: The Method and Madness of Monsters (2004), criminal justice historian Peter Vronsky notes that while Ressler might have coined the English term "serial homicide" within the law in 1974, the terms serial murder and serial murderer appear in John Brophy 's book The Meaning of Murder (1966). The Washington, D.C., newspaper Evening Star , in
327-474: A pair of scissors , and a fork. The scissors and fork were left embedded in Garner's back. The victims of the final murders were the family of Harvey Wilkerson, a longtime friend of the brothers. On the morning of October 19, despite having promised a judge earlier that day that he would stay out of trouble while out on parole , J.B. led his brothers on another prowl that night for yet another victim. Upon seeing
436-476: A police officer during a pursuit. In 1979, the three Briley brothers and an accomplice, Duncan Eric Meekins, began the seven-month series of random killings that terrified the city and surrounding region. Their first attack occurred on March 12, 1979, when Linwood knocked on the door of Henrico County couple William and Virginia Bucher. Claiming that he had car trouble and needed to use their telephone, Linwood eventually forced his way into their home. He held
545-561: A "cooling-off period." Cases of extended bouts of sequential killings over periods of weeks or months with no apparent "cooling off period" or "return to normality" have caused some experts to suggest a hybrid category of "spree-serial killer". In Controversial Issues in Criminology , Fuller and Hickey write that "[t]he element of time involved between murderous acts is primary in the differentiation of serial, mass, and spree murderers", later elaborating that spree killers "will engage in
654-747: A 1967 review of the book: There is the mass murderer, or what he [Brophy] calls the "serial" killer, who may be actuated by greed, such as insurance, or retention or growth of power, like the Medicis of Renaissance Italy, or Landru , the " bluebeard " of the World War I period, who murdered numerous wives after taking their money. Vronsky states that the term serial killing first entered into broader American popular usage when published in The New York Times in early 1981, to describe Atlanta serial killer Wayne Williams . Subsequently, throughout
763-576: A baked potato, green peas, a salad with French dressing, rolls with butter, cake, peaches, punch, and milk. His last words were "I am innocent." J.B.'s last meal consisted of fried shrimp with cocktail sauce and a lemon-lime-flavored soft drink. In his final moments, he smiled at the witnesses and twice asked them "Are you happy?" Before J.B. was executed, Shirley Barton Hayes, the mother of Judy Barton, pleaded for him to admit his guilt. She said she didn't believe in capital punishment, but asked him to confess "so his soul would be right with God." The day J.B.
872-471: A baseball bat. The brothers then entered her apartment and robbed it of valuables. Five days later, on October 5, just two blocks from the Briley home on 4th Avenue, 75-year-old Blanche Page and her 59-year-old boarder Charles Garner were murdered by the brothers. Page was bludgeoned to death while Garner was fatally assaulted and stabbed to death with various weapons, which included a baseball bat, five knives,
981-747: A case of a serial murderer in the 1870s, a Frenchman named Eusebius Pieydagnelle who had a sexual obsession with blood and confessed to murdering six people. The unidentified killer Jack the Ripper , who has been called the first modern serial killer, killed at least five women , and possibly more, in London in 1888. He was the subject of a massive manhunt and investigation by the Metropolitan Police , during which many modern criminal investigation techniques were pioneered. A large team of policemen conducted house-to-house inquiries, forensic material
1090-465: A crime reporter, was a career journalist who was caught after a series of articles he wrote gave clues that he had murdered people. Russell Williams was a successful and respected career Royal Canadian Air Force Colonel who was convicted of murdering two women, along with fetish burglaries and rapes. Many serial killers have faced similar problems in their childhood development. Hickey's Trauma Control Model explains how early childhood trauma can set
1199-847: A female nurse. Evans was executed on October 17, 1990, despite pleas for clemency and confirmation from the Mecklenburg guards who said they owed their lives to Evans. Alexandria Commonwealth's Attorney John Kloch opposed the clemency and Democratic Governor L. Douglas Wilder , the state's first African-American governor, ultimately denied clemency. The group's initial plan was to escape into Canada . Two inmates, Lem Davis Tuggle Jr. (convicted of raping and murdering one woman shortly after being released for another such crime; executed by lethal injection on December 12, 1996) and Willie Leroy Jones (convicted of two capital murders; executed on September 11, 1992), almost succeeded, making it as far as Vermont before being captured at gunpoint by police. The group
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#17328008157571308-595: A greater surface on which to spread a mortar bed and for easier handling. Most concrete blocks have two cores, but three- and four-core units are also produced. A core also allows for the insertion of steel reinforcement to span courses in order to increase tensile strength . This is accomplished by grouting the voids of blocks containing rebar with concrete. Thus reinforced, concrete block walls are better able to resist lateral forces such as wind load and seismic forces. Cores may also be filled with expanded-polystyrene (EPS) block foam insulation, substantially increasing
1417-461: A group, serial killers suffer from a variety of personality disorders . Most are often not adjudicated as insane under the law. Although a serial killer is a distinct classification that differs from that of a mass murderer , spree killer , or contract killer , there are overlaps between them. The English term and concept of serial killer are commonly attributed to former Federal Bureau of Investigation special agent Robert Ressler , who used
1526-486: A health-care facility, or at different locations within the same city or state. A notable exception to the typical characteristics of female serial killers is Aileen Wuornos , who killed outdoors instead of at home, used a gun instead of poison, and killed strangers instead of friends or family. One "analysis of 86 female serial killers from the United States found that the victims tended to be spouses, children or
1635-552: A high degree of control over the crime scene and usually have a solid knowledge of forensic science that enables them to cover their tracks, such as burying the body or weighing it down and sinking it in a river. They follow their crimes in the news media carefully and often take pride in their actions as if it were all a grand project. Often, organized killers have social and other interpersonal skills sufficient to enable them to develop both personal and romantic relationships, friends and lovers and sometimes even attract and maintain
1744-432: A hoax, as originally concluded by psychiatrist David Abrahamsen. Mission-oriented killers typically justify their acts as "ridding the world" of certain types of people perceived as undesirable, such as the homeless , ex-cons , homosexuals , drug users , prostitutes, or people of different ethnicity or religion; however, they are generally not psychotic. Some see themselves as attempting to change society, often to cure
1853-841: A killing spree in their home city of Richmond, killing at least eleven people. Two would-be victims escaped unharmed. Linwood and J. B. were sentenced to death. In 1984, the two elder brothers escaped death row with four other inmates but were recaptured within three weeks. Linwood and J. B. were executed by electric chair in 1984 and 1985, respectively. Anthony Briley and Duncan Meekins are both still incarcerated. The three Briley brothers, Linwood Earl (March 26, 1954 – October 12, 1984), James Dyral Jr. (June 6, 1956 – April 18, 1985) and Anthony Ray (born February 17, 1958), were brought up by their parents, James Dyral Briley Sr. and Bertha, in Richmond's Highland Park neighborhood. Their oldest brother, Edward Jerome "Boot" (July 7, 1952 – November 19, 2020) left
1962-472: A lower mean IQ than organized serial killers, at 89.4. Mixed serial killers, with both organized and disorganized traits, have an average IQ of 100.9, but a low sample size. Some people with a pathological interest in the power of life and death tend to be attracted to medical professions or acquiring such a job. These kinds of killers are sometimes referred to as "angels of death" or angels of mercy. Medical professionals will kill their patients for money, for
2071-609: A murderer from South America, killed a minimum of 110 young girls between 1969 and 1980. However, he claims that the number is over 300. He was released from a mental facility in 1998 and his whereabouts are still unknown. He is commonly nicknamed the "Monster of the Andes". An additional non-American serial killer is Luis Garavito from Colombia. Garavito would kill and torture boys using various disguises. He murdered around 140 boys ranging in ages from 8 to 16. He would dump his victims' bodies in mass graves. The serial killing phenomenon in
2180-488: A nearby backyard. There, the three brothers wrestled him to the ground. When Philips screamed for help, Linwood killed him by dropping a cinderblock onto his skull. On September 14, disc jockey John Harvey "Johnny G." Gallaher was performing with his band at a South Richmond nightclub . Stepping outside between sets for a break, he inadvertently came right into the hands of the Brileys. Having been looking around town for
2289-509: A parent has a drug or alcohol problem, the attention in the household is on the parents rather than the child. This neglect of the child leads to the lowering of their self-esteem and helps develop a fantasy world in which they are in control. Hickey's Trauma Control Model supports how parental neglect can facilitate deviant behavior, especially if the child sees substance abuse in action. This then leads to disposition (the inability to attach), which can further lead to homicidal behavior, unless
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#17328008157572398-436: A pistol and fatally shot Wilkerson in the head. J.B. then shot and killed both Barton and Harvey. Police happened to be in the general vicinity of the neighborhood, and later saw the gang members running down the street at high speed. They did not know where the shots had been fired. The bodies were not discovered until three days later, but the brothers were all arrested soon afterwards. During interrogation by police, Meekins
2507-455: A problem that afflicts the whole society." Lorenzo Carcaterra, author of Gangster (2001), explains how potential criminals are labeled by society , which can then lead to their offspring also developing in the same way through the cycle of violence . The ability for serial killers to appreciate the mental life of others is severely compromised, presumably leading to their dehumanization of others. This process may be considered an expression of
2616-404: A random weapon available at the time, and usually do not attempt to hide the body. They are likely to be unemployed, a loner, or both, with very few friends. They often turn out to have a history of mental illness, and their modus operandi (M.O.) or lack thereof is often marked by excessive violence and sometimes necrophilia or sexual violence. Disorganized serial killers have been found to have
2725-424: A ribbed or solid two-block unit; such factory-produced units are called "split-rib" or "split-face" blocks. Blocks may be scored by grooves the width of a mortar joint to simulate different block modules. For example, an 8-by-16-inch (200 mm × 410 mm) block may be scored in the middle to simulate 8-by-8-inch (200 mm × 200 mm) masonry, with the grooves filled with mortar and struck to match
2834-718: A sand base and without mortar or reinforcing (gravity wall), or using blocks (typically an architectural style of block or clad with a veneer such as brick) with a concrete base, steel reinforcing and mortar (piling wall). Other very common, non-structural uses for concrete block walls (especially in American schools) are as interior fire-rated and extremely durable partition walls, and as exterior backup curtain walls for attachment of building envelope systems (rigid foam insulation and an air/vapor barrier) and veneers (stucco, steel, brick, or split-face concrete block). Concrete masonry walls may be ungrouted, partially grouted, or fully grouted,
2943-559: A sense of sadistic pleasure, for a belief that they are "easing" the patient's pain, or simply "because they can". Perhaps the most prolific of these was the British doctor Harold Shipman . Another such killer was nurse Jane Toppan , who admitted during her murder trial that she was sexually aroused by death . She would administer a drug mixture to patients she chose as her victims, lie in bed with them and hold them close to her body as they died. Another medical professional serial killer
3052-461: A small bloody mark under her armpit at the viewing and asked a funeral director to re-examine the body. Upon a second examination, a small caliber bullet wound was discovered under her armpit. Standing in Christian's back yard, a detective used a sheet of plywood to represent her body, with a hole cut out to represent the wound. He determined that the bullet came from the Briley residence. There,
3161-522: A societal ill. Cinderblock Concrete blocks may be produced with hollow centers (cores) to reduce weight , improve insulation and provide an interconnected void into which concrete can be poured to solidify the entire wall after it is built. Concrete blocks are some of the most versatile building products available because of the wide variety of appearances that can be achieved using them. Those that use cinders ( fly ash or bottom ash ) as an aggregate material are called "cinder blocks" in
3270-526: A spouse and sustain a family including children. Among serial killers, those of this type are in the event of their capture most likely to be described by acquaintances as kind and unlikely to hurt anyone. Ted Bundy and John Wayne Gacy are examples of organized serial killers. In general, the IQs of organized serial killers tend to be normal range, with a mean of 98.7. Disorganized serial killers are usually far more impulsive, often committing their murders with
3379-497: A structural system is the Masonry Standards Joint Committee's Building Code Requirements & Specification for Masonry Structures (TMS 402/602-16). The compressive strength of concrete blocks and masonry walls varies from approximately 3.4 to 34.5 MPa (500–5,000 psi) based on the type of concrete used to manufacture the unit, stacking orientation, the type of mortar used to build
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3488-457: A variety of fields and specialties with the goal of identifying the commonalities of knowledge regarding serial murder. The group also settled on a definition of serial murder which FBI investigators widely accept as their standard: "The unlawful killing of two or more victims by the same offender(s) in separate events". Serial homicide researcher Enzo Yaksic found that the FBI was justified in lowering
3597-478: A victim all night without success, they decided to lie in wait for whoever might happen to step outside. Gallaher was assaulted by Linwood and put into the trunk of his own Lincoln Continental . He was then driven out to the ruins of a paper mill on Mayo Island, located in the middle of the James River , where he was removed from the trunk of his car and shot dead at point blank range in the head. Six dollars
3706-682: Is Genene Jones . It is believed she killed 11 to 46 infants and children while working at Bexar County Medical Center Hospital in San Antonio, Texas, United States. She is currently serving a 99-year sentence for the murder of Chelsea McClellan and the attempted murder of Rolando Santos, and became eligible for parole in 2017 due to a law in Texas at the time of her sentencing to reduce prison overcrowding . A similar case occurred in Britain in 1991, where nurse Beverley Allitt killed four children at
3815-508: Is akin to a male serial killer's collecting of totems (souvenirs) from the victim as a way of exerting continued control over the victim and reliving it. By contrast, Hickey states that although popular perception sees "black widow" female serial killers as something of the Victorian past, in his statistical study of female serial killer cases reported in the United States since 1826, approximately 75% occurred since 1950. Elizabeth Báthory
3924-457: Is instigated to seek approval from parents, sexual partners, or others." This need for approval is what influences children to attempt to develop social relationships with their family and peers. "The quality of their attachments to parents and other members of the family is critical to how these children relate to and value other members of society." Wilson and Seaman (1990) conducted a study on incarcerated serial killers, and what they concluded
4033-461: Is retarded because the child's emotional and social development occurs within his self-centered fantasies. A person can do no wrong in his own world and the pain of others is of no consequence when the purpose of the fantasy world is to satisfy the needs of one person" (Garrison, 1996). Boundaries between fantasy and reality are lost and fantasies turn to dominance, control, sexual conquest, and violence, eventually leading to murder. Fantasy can lead to
4142-479: Is sometimes cited as the most prolific female serial killer in all of history. Formally countess Elizabeth Báthory de Ecsed (Báthory Erzsébet in Hungarian , August 7, 1560 – August 21, 1614), she was a countess from the renowned Báthory family . Before her husband's death, Elizabeth took great pleasure in torturing the staff, by jamming pins under the servant's fingernails or stripping servants and throwing them into
4251-508: The Besser Company was a major supplier of machines that made concrete blocks), and also as grey blocks or concrete masonry units (CMUs). Clinker blocks use clinker (ash created as a waste product from impurities in minerals such as coal, limestone and iron-ore), also called slag. Concrete blocks are made from cast concrete (e.g. portland cement and aggregate , usually sand and fine gravel , for high-density blocks). In
4360-529: The Han Emperor Jing , was made Prince of Jidong in the sixth year of the middle period of Jing's reign (144 BC). According to the Chinese historian Sima Qian , he would "go out on marauding expeditions with 20 or 30 slaves or with young men who were in hiding from the law, murdering people and seizing their belongings for sheer sport". Although many of his subjects knew about these murders, it
4469-487: The Hungarian aristocrat Elizabeth Báthory , born into one of the wealthiest families in Transylvania , allegedly tortured and killed as many as 650 girls and young women before her arrest in 1610. Between 1564 and 1589, German farmer Peter Stumpp killed 14 children, including his own son. He also murdered two pregnant women and had an incestuous relationship with his daughter. Stumpp claimed to have been granted
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4578-512: The NHS ). He was considered a pillar of the local community; he even won a professional award for a children's asthma clinic and was interviewed by Granada Television 's World in Action on ITV . Dennis Nilsen was an ex-soldier turned civil servant and trade unionist who had no previous criminal record when arrested. Neither was known to have exhibited many of the tell-tale signs. Vlado Taneski ,
4687-588: The R-value of the resulting wall to be in compliance with the US national energy code. A variety of specialized shapes exist to allow special construction features. U-shaped blocks, or knockout blocks, have notches to allow the construction of bond beams or lintel assemblies, using horizontal reinforcing grouted into place in the cavity. Blocks with a channel on the end, known as "jamb blocks", allow doors to be secured to wall assemblies. Blocks with grooved ends permit
4796-639: The Vietnam War were preventing California from experiencing the Big One . As the war wound down, Mullin claimed his father instructed him via telepathy to raise the number of "human sacrifices to nature" to delay a catastrophic earthquake that would plunge California into the ocean. David Berkowitz ("Son of Sam") may also be an example of a visionary serial killer, having claimed a demon transmitted orders through his neighbor's dog and instructed him to commit murder. Berkowitz later described those claims as
4905-448: The intersubjectivity associated with a cognitive deficit regarding the capability to make sharp distinctions between other people and inanimate objects. For these individuals, objects can appear to possess animistic or humanistic power while people are perceived as objects. Before he was executed, serial killer Ted Bundy stated media violence and pornography had stimulated and increased his need to commit homicide, although this statement
5014-459: The power to control the mistreatment they suffer sometimes create a new reality to which they can escape. This new reality becomes their fantasy that they have total control of and becomes part of their daily existence. In this fantasy world, their emotional development is guided and maintained. According to Garrison (1996), "the child becomes sociopathic because the normal development of the concepts of right and wrong and empathy towards others
5123-446: The 1980s, the term was used again in the pages of The New York Times , one of the major national news publications of the United States, on 233 occasions. By the end of the 1990s, the use of the term had increased to 2,514 instances in the paper. When defining serial killers, researchers generally use "three or more murders" as the baseline, considering it sufficient to provide a pattern without being overly restrictive. Independent of
5232-400: The 1990s include increased incarceration in the United States , the end of the crack epidemic in the United States , and decreased lead exposure in early childhood. Some commonly found characteristics of serial killers include the following: There are exceptions to these criteria, however. For example, Harold Shipman was a successful professional (a General Practitioner working for
5341-559: The Islamic Calendar), "a strangler from Baghdad was apprehended. He had murdered a number of women and buried them in the house where he was living." The majority of documented serial killers were active in the United States. In one study of serial homicide in South Africa, many patterns were similar to established patterns in the U.S., with some exceptions: no offenders were female, offenders were lower educated than in
5450-486: The U.S., and both victims and offenders were predominantly black. In the 15th century, one of the wealthiest men in Europe and a former companion-in-arms of Joan of Arc , Gilles de Rais , was alleged to have sexually assaulted and killed peasant children, mainly boys, whom he had abducted from the surrounding villages and had taken to his castle. It is estimated that his victims numbered between 140 and 800. Similarly,
5559-475: The United States since that time. The decline in serial killers has no known single cause but is attributed to a number of factors. Mike Aamodt , emeritus professor at Radford University in Virginia, attributes the decline in number of serial killings to less frequent use of parole , improved forensic technology , and people behaving more cautiously. Causes for the general reduction in violent crime following
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#17328008157575668-480: The United States between 1800 and 2004 (64 females from a total of 416 known offenders), or that around 15% of U.S. serial killers have been women, with a collective number of victims between 427 and 612. The authors of Lethal Ladies , Amanda L. Farrell, Robert D. Keppel, and Victoria B. Titterington, state that "the Justice Department indicated 36 female serial killers have been active over the course of
5777-517: The United States indicated that sexual activity was one of several motives in 10% of the cases, enjoyment in 11% and control in 14% and that 51% of all U.S. female serial killers murdered at least one woman and 31% murdered at least one child. In other cases, women have been involved as an accomplice with a male serial killer as a part of a serial killing team. A 2015 study published in The Journal of Forensic Psychiatry & Psychology found that
5886-434: The United States was especially prominent from 1970 to 2000, which has been described as the "golden age of serial murder". The cause of the spike in serial killings has been attributed to urbanization , which put people in close proximity and offered anonymity. The number of active serial killers in the United States peaked in 1989 and has been steadily trending downward since, coinciding with an overall decrease in crime in
5995-426: The United States. According to a 2016 study, since the year 2000, African Americans accounted for roughly 60% of all serial killers in the United States. Anthony Walsh found that the prevalence of non-white serial killers has typically been drastically underestimated in both professional research literature and the mass media. Black males were over-represented among serial killers by a factor of 2. Walsh argues that
6104-489: The United States. They are also known as "breeze blocks", a term derived from "breeze", referring to the small cinders and cinder-dust that are created by partially burned coal. However, in the United States breeze blocks also refer specifically to decorative blocks used on exterior walls to allow the breeze through, which were an important feature of Mid-Century Modern design, popularised by Edward Durrell Stone . In Australia, they are often known as besser blocks (because
6213-700: The ability to turn into a werewolf by the Devil. As punishment for his crimes, Stumpp was put on a torture wheel and executed. His head was later severed and put on a pole next to the figure of a wolf to scare other people away from claiming themselves werewolves too. Members of the Thuggee cult in India may have murdered a million people between 1740 and 1840. Thug Behram , a member of the cult, may have murdered as many as 931 victims. In his 1886 book, Psychopathia Sexualis , psychiatrist Richard von Krafft-Ebing noted
6322-540: The behavior. While juvenile serial killers are rare, the youngest felon on death row is a juvenile serial killer named Harvey Miguel Robinson who was 17 at the time of his crimes and 18 at the time of his arrest. There is a myth that most serial killers are white males. However, according to the FBI, based on percentages of the U.S. population, white males are not more likely than other races to be serial killers. White males are actually greatly under-represented among serial killers in proportion to their overall numbers in
6431-432: The brothers down the street, Wilkerson, who lived with his 23-year-old common-law wife Judy Diane Barton (who was eight months pregnant at the time) and her 5-year-old son Harvey Wayne Barton, instinctively closed and locked his door. This action was noticed by the brothers, who then walked over to Wilkerson's front door. Terrified by their potential response if he refused them entry, Wilkerson allowed them in. Both adults in
6540-421: The brothers followed 76-year-old Mary Gowen across town from her babysitting job. They followed her into her house, beat, raped, robbed, and shot her. They escaped from the residence with many of her valuables. The gang saw seventeen-year-old Christopher Philips hanging around Linwood's parked car on July 4. Suspecting that he might have been trying to steal the vehicle, the gang surrounded him and dragged him into
6649-414: The captured guards by dousing them with rubbing alcohol and tossing a lit match. Willie Lloyd Turner, another death row inmate (convicted of murder; executed by lethal injection on May 25, 1995), stepped in J. B.'s way and blocked him from doing so. Meanwhile, Wilbert Lee Evans, on death row after being convicted of the murder of Alexandria City sheriff's deputy William Truesdale, prevented Linwood from raping
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#17328008157576758-432: The case of psychological decompensation or overconfidence due to having evaded capture. Organized serial killers often plan their crimes methodically, usually abducting victims, killing them in one place and disposing of them in another. They often lure the victims with ploys appealing to their sense of sympathy. Others specifically target prostitutes, who are likely to go voluntarily with a stranger. These killers maintain
6867-399: The categories of the black widow or team killer. Although motivations for female serial killers can include attention seeking, addiction, or the result of psychopathological behavioral factors, female serial killers are commonly categorized as murdering men for material gain, usually being emotionally close to their victims, and generally needing to have a relationship with the victim, hence
6976-448: The child finds a way to develop substantial relationships and fight the label they receive. If a child receives no support from anyone, then they are unlikely to recover from the traumatic event in a positive way. As stated by E. E. Maccoby, "the family has continued to be seen as a major—perhaps the major—arena for socialization". There have been studies looking into the possibility that an abnormality with one's chromosomes could be
7085-426: The child up for deviant behavior in adulthood; the child's environment (either their parents or society) is the dominant factor determining whether or not the child's behavior escalates into homicidal activity. Family, or lack thereof, is the most prominent part of a child's development because it is what the child can identify with on a regular basis. "The serial killer is no different from any other individual who
7194-462: The composition of the blocks. Use of recycled materials within blocks can create different appearances in the block, such as a terrazzo finish, and may help the finished structure earn LEED certification . Lightweight blocks can also be produced using autoclaved aerated concrete ; these are widely used for construction in Finland and other Scandinavian countries, as well as in central Europe, for
7303-413: The construction of control joints , allowing a filler material to be anchored between the un-mortared block ends. Other features, such as radiused corners known as " bullnoses ", may be incorporated. A wide variety of decorative profiles also exist. Concrete blocks may be formulated with special aggregates to produce specific colors or textures for finish use. Special textures may be produced by splitting
7412-517: The couple at gunpoint and waved Anthony inside. The two Brileys tied up the couple and robbed the house, dousing each room with kerosene after stripping it of valuables. As they left, a lit match was tossed on the fuel. The two hurriedly packed their stolen loot – a television, CB radio , a .32 pistol, and jewelry – into their trunk and drove out of the area. William Bucher managed to free himself and his wife from their restraints, which Meekins apparently had not tied tightly enough, and escape just before
7521-665: The early 1890s. The case was one of the first involving a serial murderer that gained widespread notoriety and publicity through sensationalized accounts in William Randolph Hearst 's newspapers. However, at the same time of the Holmes case, in France, Joseph Vacher became known as "The French Ripper" after killing and mutilating 11 women and children. He was executed in 1898 after confessing to his crimes. Another notable non-American serial killer is Pedro Lopez ,
7630-640: The elderly". Other studies indicate that since 1975, increasingly strangers are marginally the most preferred victim of female serial killers, or that only 26% of female serial killers kill for material gain only. Sources state that each killer will have her own proclivities, needs and triggers. A review of the published literature on female serial murder stated that "sexual or sadistic motives are believed to be extremely rare in female serial murderers, and psychopathic traits and histories of childhood abuse have been consistently reported in these women." A study by Eric W. Hickey (2010) of 64 female serial killers in
7739-418: The first step in the process of a dissociative state, which, in the words of Stephen Giannangelo, "allows the serial killer to leave the stream of consciousness for what is, to him, a better place". Criminologist Jose Sanchez reports, "The young criminal you see today is more detached from his victim, more ready to hurt or kill. The lack of empathy for their victims among young criminals is just one symptom of
7848-585: The home to live with relatives in North Carolina in his early teen years and was not involved with his younger brothers later criminal activities. With their younger brother Anthony, Linwood and J.B. were regarded by older neighbors as young people who would help them repair cars or mow lawns. The brothers collected exotic pets, such as tarantulas , piranhas , and boa constrictors . When the brothers reached their teenage years, Bertha and James Sr split up and she moved away. James Dyral Briley Sr., reportedly
7957-484: The home were overpowered, bound and gagged with duct tape . Linwood then assaulted Judy Barton in the kitchen, where she was raped within hearing distance of the others. Meekins continued the sexual assault , after which Linwood dragged Barton back into the living room , briefly rummaged in the premises for valuables, and then left the house. The three remaining gang members covered their victims with sheets. J.B. told Meekins, "you've got to get one", upon which Meekins took
8066-547: The hospital where she worked, attempted to kill three more, and injured a further six over the course of two months. A 21st-century example is Canadian nurse Elizabeth Wettlaufer , who murdered elderly patients in the nursing homes where she worked. William George Davis is another hospital nurse who was sentenced to death in Texas for the murder of four patients. Female serial killers are rare compared to their male counterparts. Sources suggest that female serial killers represented less than one in every six known serial murderers in
8175-454: The house became engulfed in flames. They would be the sole survivors of the rampage, although their cat perished in the blaze. On March 21, Michael W. McDuffie, a vending machine serviceman, was assaulted, shot, and robbed in his suburban home by the Brileys. Ten days later, on March 31, Linwood shot and killed 28-year old Edric Alvin Clark over a drug dispute involving Meekins. On April 9,
8284-399: The killing acts for days or weeks" while the "methods of murder and types of victims vary". Andrew Cunanan is given as an example of spree killing, while Charles Whitman is mentioned in connection with mass murder, and Jeffrey Dahmer with serial killing. In 2005, the FBI hosted a multi-disciplinary symposium in San Antonio, Texas, which brought together 135 experts on serial murder from
8393-598: The killings taking place over a significant period of time in separate events. Their psychological gratification is the motivation for the killings, and many serial murders involve sexual contact with the victims at different points during the murder process. The United States Federal Bureau of Investigation (FBI) states that the motives of serial killers can include anger, thrill-seeking , financial gain, and attention seeking , and killings may be executed as such . The victims tend to have things in common, such as demographic profile , appearance, gender, or race . As
8502-505: The last century." According to The Journal of Forensic Psychiatry & Psychology , there is evidence that 16% of all serial killers are women. Michael D. Kelleher and C. L. Kelleher created several categories to describe female serial killers. They used the classifications of black widow , angel of death , sexual predator , revenge , profit or crime , team killer , question of sanity , unexplained , and unsolved . In using these categories, they observed that most women fell into
8611-485: The latter two enhancing their structural strength. Additionally, steel reinforcement bars (rebar) can be used both vertically and horizontally inside a concrete block wall to maximize its structural performance. The cells in which the rebar is placed must be grouted for the bars to bond to the wall. For this reason, high-seismic zones typically allow only fully grouted walls in their building codes. The American design code that guides design engineers in using concrete blocks as
8720-424: The material's inherent thermal insulation characteristics, as are expanded clay aggregate blocks. Blocks come in modular sizes, with the most popular typically referred to (by their thickness) as "4-inch", "6-inch", "8-inch", and "12-inch". In the US, concrete blocks are nominally 16 in (410 mm) long and 8 in (200 mm) wide. Their actual dimensions are 3 ⁄ 8 inch (9.5 mm) less than
8829-422: The midst of the wealth of London focused the media's attention on the plight of the urban poor and gained coverage worldwide. Jack the Ripper has also been called the most infamous serial killer of all time, and his legend has spawned hundreds of theories on his real identity and many works of fiction . H. H. Holmes was a serial killer in the United States, responsible for the death of at least nine victims in
8938-835: The misconceptions concerning female criminality. In the article, Perri and Lichtenwald analyze the current research regarding female psychopathy, including case studies of female psychopathic killers featuring Munchausen syndrome by proxy , cesarean section homicide, fraud detection homicide, female kill teams, and a female serial killer. Juvenile serial killers are rare. There are three main categories that juvenile serial killers can fit into: primary, maturing, and secondary killers. There have been studies done to compare and contrast these three groups and to discover similarities and differences between them. Although these types of serial killers are less common, oftentimes adult serial killers may make their debut at an early age and it can be an opportunity for researchers to study what factors brought about
9047-545: The most common motive for female serial killers was for financial gain and almost 40% of them had experienced some sort of mental illness. Peter Vronsky in Female Serial Killers (2007) maintains that female serial killers today often kill for the same reason males do: as a means of expressing rage and control. He suggests that sometimes the theft of the victims' property by the female "black widow" type serial killer appears to be for material gain, but really
9156-452: The motives of any given killer may display considerable overlap among these categories. Visionary serial killers suffer from psychotic breaks with reality, sometimes believing they are another person or are compelled to murder by entities such as the Devil or God. The two most common subgroups are "demon mandated" and "God mandated". Herbert Mullin believed the American casualties in
9265-403: The murder weapon was found and Linwood admitted to the crime by saying, "I heard she had heart problems; she would have died soon anyway." After his lawyer convinced the judge that the shooting had been an accident, Linwood was sent to reform school to serve a one-year sentence for the killing. J.B. followed in his path, and at a similar age was sentenced to time in juvenile hall for firing upon
9374-466: The murders of Judy Barton and her son Harvey. Both were sent to death row at Mecklenburg Correctional Center near Boydton in early 1980. Linwood and James Briley were the ringleaders in a six-inmate escape from Virginia's death row at Mecklenburg Correctional Center on May 31, 1984. During the early moments of the escape, in which a coordinated effort resulted in inmates taking over the death row unit, both Brileys expressed strong interest in killing
9483-589: The nominal dimensions (to allow for 3 ⁄ 8 -inch mortar joints between blocks in any orientation). In Ireland and the UK, blocks are usually 440 mm × 215 mm × 100 mm (17.3 in × 8.5 in × 3.9 in) excluding mortar joints. In Australia, New Zealand and Canada, blocks are usually 390 mm × 190 mm × 190 mm (15.4 in × 7.5 in × 7.5 in) excluding mortar joints. Block cores are typically tapered so that their top surface (as laid) has
9592-406: The number of murders, they need to have been committed at different times, and are usually committed in different places. The lack of a cooling-off period (a significant break between the murders) marks the difference between a spree killer and a serial killer. The category has, however, been found to be of no real value to law enforcement, because of definitional problems relating to the concept of
9701-409: The only person the brothers respected, kept his bedroom door padlocked from the inside overnight. On January 28, 1971, the first killing was committed by Linwood, at 16. While alone at home, Linwood fatally shot Orline Christian, a 57-year old neighbor, with a rifle from his bedroom window as she was hanging out some laundry on a clothesline. The crime almost went unidentified, but her relatives noticed
9810-418: The popular media ignores black serial killers because of a fear of allegations of racism, and that this may enable black serial killers to operate more effectively, as their crimes do not get the same media attention as the crimes of non-black serial killers. The motives of serial killers are generally placed into four categories: visionary , mission-oriented , hedonistic , and power or control ; however,
9919-549: The remaining appeals ran out for both brothers. Several weeks before his execution, James Briley married a writer who believed his claims of innocence, Evangeline Grant Redding, on March 28, 1985, in a prison ceremony attended by his father, James Sr. The brothers were executed in the electric chair at the Virginia State Penitentiary in Richmond; Linwood on October 12, 1984, and J.B. on April 18, 1985. Linwood's last meal consisted of grilled tenderloin steak,
10028-561: The snow. After her husband's death, she and four collaborators were accused of torturing and killing hundreds of girls and young women, with one witness attributing to them over 600 victims, though the number for which they were convicted was 80. Elizabeth herself was neither tried nor convicted. In 1610, however, she was imprisoned in the Csejte Castle, where she remained bricked in a set of rooms until her death four years later. A 2010 article by Perri and Lichtenwald addressed some of
10137-432: The state parole board , as have those of Duncan Meekins, despite recommendations from former prosecutors Robert J. Rice and Warren Von Schuch, who have cited Meekins' assistance in prosecuting and convicting the Briley brothers. Serial killer Note: Varies by jurisdiction Note: Varies by jurisdiction A serial killer (also called a serial murderer ) is a person who murders three or more people, with
10246-703: The term serial homicide in 1974 in a lecture at Police Staff College, in Bramshill , Hampshire , England. Author Ann Rule postulates in her 2004 book Kiss Me, Kill Me , that the English-language credit for coining the term goes to Los Angeles Police Department detective Pierce Brooks, who created the Violent Criminal Apprehension Program (ViCAP) system in 1985. The German term and concept were coined by criminologist Ernst Gennat , who described Peter Kürten as
10355-403: The traditional cultural image of the "black widow". The methods that female serial killers use for murder are frequently covert or low-profile, such as murder by poison (the preferred choice for killing). Other methods used by female serial killers include shootings (used by 20%), suffocation (16%), stabbing (11%), and drowning (5%). They commit killings in specific places, such as their home or
10464-610: The trigger for serial killers. Two serial killers, Bobby Joe Long and Richard Speck , came to attention for reported chromosomal abnormalities. Long had an extra X chromosome . Speck was erroneously reported to have an extra Y chromosome ; in fact, his karyotype was performed twice and was normal each time. While attempts have been made to link the XYY karyotype to violence, including serial murder, research has consistently found little or no association between violent criminal behaviour and an extra Y chromosome. Children who do not have
10573-602: The true joints. Concrete block, when built with integral steel reinforcement , is a very common building material for the load-bearing walls of buildings, in what is termed concrete block structure ( CBS ) construction. One of the common foundation types for American suburban houses is the "crawl space foundation" which consists of a concrete block wall on the perimeter on which dimensional lumber floor joists are supported. Retaining walls , which can also be constructed of concrete blocks, can be constructed, either using blocks designed to be set back each course and used with
10682-439: The victim threshold from three to two victims given that serial murderers from these groups share similar pathologies. Historical criminologists suggest that there have been serial killers throughout history. Some sources suggest that legends such as werewolves and vampires were inspired by medieval serial killers. In Africa, there have been periodic outbreaks of murder by leopard men . Liu Pengli of China, nephew of
10791-461: The western United States, where they are easily obtainable, porous lava rock gravels are used for weight reduction. They also have an added decorative effect to certain types of block, such as split-face, due to their distinct red and black colors. Lower-density blocks may use industrial wastes , such as fly ash or bottom ash , as an aggregate. Recycled materials, such as post-consumer glass, slag cement, or recycled aggregate, are often used in
10900-427: Was collected and suspects were identified and traced. Police surgeon Thomas Bond assembled one of the earliest character profiles of the offender . The Ripper murders also marked an important watershed in the treatment of crime by journalists. While not the first serial killer in history, Jack the Ripper's case was the first to create a worldwide media frenzy. The dramatic murders of financially destitute women in
11009-507: Was convicted of four counts of first degree murder, three of those for the Barton family murders. He received a life sentence plus 119 years, with the possibility of parole. Anthony avoided capital murder charges since it could not be proven that he had personally committed any of the murders. He is incarcerated at Augusta Correctional Center , about 20 miles outside Staunton, Virginia . To date, all his applications for parole have been denied by
11118-572: Was executed, fellow inmates tried to delay the process by attacking the guards with homemade knives. Nine guards and one inmate were injured. Linwood was survived by one son, Norman Laquan Ampy, who later served time in prison for bank robbery and died in 2015, he is survived by a daughter. J.B. is survived by three daughters, who live in Richmond. The brothers are buried at the Council family's cemetery plot in Bethel, North Carolina . Anthony Ray Briley
11227-491: Was handed down to Anthony Briley, youngest brother of the trio, due to his limited involvement in the killings. Because of Virginia's "triggerman statute", both J.B. and Linwood received numerous life sentences for murders committed during the spree, but faced capital charges only in cases where they had physically committed the actual killing of the victim. Linwood was sentenced to death for the abduction and murder of Gallaher, while J.B. received two death sentences, one for each of
11336-502: Was held at Marble Valley Correctional Facility in Rutland , pending their extradition back to Virginia. Splitting off from their two remaining co-escapers at Philadelphia , the Brileys went to live near their uncle, Johnny Lee Council, in the north of the city. They were captured on June 19 by a heavily armed group of FBI agents and police, who had determined their location by placing wiretaps on their uncle's phone line. In short order,
11445-553: Was made during last-ditch efforts to appeal his death sentence. In the 1970s and 1980s, FBI profilers instigated a simple division of serial killers into "organized" and "disorganized"; that is, those who plan their crimes, and those who act on impulse. The FBI's Crime Classification Manual now places serial killers into three categories: organized , disorganized , and mixed (i.e., offenders who exhibit organized and disorganized characteristics). Some killers descend from organized to disorganized as their killings continue, as in
11554-399: Was not until the 29th year of his reign that the son of one of his victims finally sent a report to the emperor. Eventually, it was discovered that he had murdered at least 100 people. The officials of the court requested that Liu Pengli be executed; however, the emperor could not bear to have his own nephew killed, so Liu Pengli was made a commoner and banished. In the 9th century (year 257 of
11663-514: Was offered a plea agreement in return for turning state's evidence against the Brileys. He took the offer and provided a full detailing of the crime spree ; as a result, he escaped the death penalty and was incarcerated under an alias at an out of state prison away from the Briley brothers. Under the agreement, Meekins was given a life sentence plus 80 years, which at the time of conviction would make him eligible for parole after serving 12-15 years. A single life sentence with parole eligibility
11772-406: Was taken from his wallet and divided up. Gallaher's body was then dumped into the river. The remains were found two days later. When arrested months later, Linwood was still wearing a ring stolen from Gallaher's hand. On September 30, 62-year-old private nurse Mary Wilfong was followed home to her Richmond apartment. The brothers surrounded her just outside the door and Linwood beat her to death with
11881-446: Was the most influential factor that contributed to their homicidal activity. Almost all of the serial killers in the study had experienced some sort of environmental problems during their childhood, such as a broken home caused by divorce, or a lack of a parental figure to discipline the child. Nearly half of the serial killers had experienced some type of physical or sexual abuse, and more of them had experienced emotional neglect. When
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