Serial killer

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A serial killer is a person who murders usually three or more people^[1][2] over a period of more than 30 days with a "cooling off" period between each murder, whose motivation for killing is largely based on psychological gratification.^[3][4] Often a sexual element is involved with the killings. The murders may have been attempted or completed in a similar fashion and the victims may have had something in common, for example occupation, race, appearance, gender, or age group.

Coinage of the English term serial killer is commonly attributed to former FBI Special Agent Robert Ressler in the 1970s.^[5][6]

Contents 1 Characteristics 2 Types of serial killers 2.1 Organized/nonsocial offenders 2.2 Disorganized/asocial offenders 3 Motives 3.1 Visionary 3.2 Mission-oriented 3.3 Hedonistic 3.3.1 Lust 3.3.2 Thrill 3.3.3 Comfort 3.4 Power/control 4 Medical professionals 5 Victims 6 Female serial killers 7 Serial killers in history 8 Serial killers in popular culture 9 See also 10 References 11 Bibliography 12 External links

Characteristics

Psychosis is rarely noted among serial killers. The predominant psychiatric diagnosis noted in the group tends toward the psychopathic, meaning they suffer from traits within a specific cluster of dysfunctional personality characteristics, those most commonly associated with Antisocial Personality Disorder or Dissocial personality disorder.^[7][8] Psychopaths lack empathy and guilt, are egocentric and impulsive, and do not conform to social, moral and legal norms. They may appear to be quite normal and often even charming, a state of adaptation that psychiatrist Hervey Cleckley named the "mask of sanity".^[9]

Serial killers tend to share the following general characteristics:^[10][11]

1. The majority are single, white males.
2. They are often intelligent, with IQs in the "bright normal" range.
3. Despite their high IQs, they do poorly in school, have trouble holding down jobs, and often work menial jobs.
4. They tend to come from unstable families.
5. As children, they are typically abandoned by their fathers and raised by domineering mothers.
6. Their families often have criminal, psychiatric and alcoholic histories.
7. They often are mistrustful of their parents.
8. It is common to find that as children, they were abused—psychologically, physically and/or sexually—by a family member.
9. Many spend time in institutions as children and have records of early psychiatric problems.
10. They have high rates of suicide attempts.
11. From an early age, many are intensely interested in voyeurism, fetishism, and sadomasochistic pornography.
12. More than 60 percent wet their beds beyond the age of 12.
13. Many are fascinated with fire starting.
14. They are involved in sadistic activity or torturing small animals.

Types of serial killers

The FBI's Crime Classification Manual places serial killers into three categories: "organized", "disorganized" and "mixed"—offenders who exhibit organized and disorganized characteristics.^[12] Some killers descend from being organized into disorganized behavior as their killings continue. They will carry out careful and methodical murders at the start, but become careless and impulsive as their compulsion takes over their lives.^{[citation needed]}

Organized/nonsocial offenders

Organized/nonsocial offenders usually have above average intelligence, with a mean IQ of 123.^[13] They often plan their crimes quite methodically, usually abducting victims, killing them in one place and disposing of them in another. They will often lure the victims with ploys appealing to their sense of sympathy. For example, Ted Bundy would put his arm in a fake plaster cast and ask women to help him carry something to his car, where he would beat them unconscious with a metal bar (e.g. a crowbar), and carry them away. Others specifically target prostitutes, who are likely to voluntarily go with a serial killer posing as a customer. They maintain 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 media carefully and often take pride in their actions, as if it were all a grand project. The organized killer is usually socially adequate, has friends and lovers, and sometimes even a spouse and children. They are the type who, when captured, are most likely to be described by acquaintances as kind and unlikely to hurt anyone. Some serial killers go to lengths to make their crimes difficult to discover, such as falsifying suicide notes, setting up others to take the blame for their crimes, faking gang warfare, or disguising the murder to look like a natural death.^{[citations needed]} David Berkowitz, Ted Bundy and John Wayne Gacy are examples of organized serial killers.^[14]

Disorganized/asocial offenders

Disorganized/asocial offenders are often of low intelligence, have a below average IQ (<90), and commit their crimes impulsively. Whereas the organized killer will specifically set out to hunt a victim, the disorganized will murder someone when the opportunity arises, rarely bothering to dispose of the body but instead just leaving it at the same place where they found the victim. They usually carry out "blitz" attacks, leaping out and attacking their victims without warning, and will typically perform whatever rituals they feel compelled to carry out (e.g., necrophilia, mutilation, cannibalism, etc.) once the victim is dead. They rarely bother to cover their tracks but may still evade capture for some time because of a level of cunning that compels them to keep on the move. They are often socially inadequate with few friends, and they may have a history of mental problems and be regarded by acquaintances as eccentric or even "a bit creepy". Disorganized/asocial offenders also tend to be introverted. They have little insight into their crimes and may even block out memories of committing the murders.^{[citations needed]}

Motives

The motives of serial killers are generally placed into four categories: "visionary", "mission-oriented", "hedonistic" and "power/control"; however, there is often considerable overlap among these categories.^[15][16]

Visionary

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.^[17] The two most common subgroups are "demon mandated" and "God mandated."^[18]

Herbert Mullin believed the American casualties in the Vietnam War were preventing California from experiencing an earthquake. As the war wound down, Mullin claimed his father instructed him via telepathy to raise the amount of "human sacrifices to nature" in order to delay a catastrophic earthquake that would plunge California into the ocean.^[19]

David Berkowitz ("Son of Sam") is an example of a demon-mandated visionary killer. He claimed a demon transmitted orders through his neighbor's dog, instructing him to murder.^[20]

Mission-oriented

Mission-oriented killers justify their acts on the basis that they are getting rid of a certain type of person, such as homosexuals, prostitutes, blacks or Catholics, whom they find undesirable; however, they are not psychotic.^[21]

Ted Kaczynski, the "Unabomber", targeted universities and the airline industry.^[22] He wrote a manifesto that he distributed to the media, in which he claimed he wanted society to return to a time when technology was not a threat to its future, asserting that "the Industrial Revolution and its consequences have been a disaster for the human race."^[23][24]

Hedonistic

This type of serial killer seeks thrills and derives pleasure from killing, seeing people as objects for their enjoyment. Forensic psychologists have identified three subtypes of the hedonistic killer: "lust", "thrill" and "comfort".^[18]

Lust

Sex is the primary motive of lust killers, whether or not the victims are dead, and fantasy plays a large role in their killings. Their sexual gratification depends on the amount of torture and mutilation they perform on their victims. They usually use weapons that require close contact with the victims, such as knives or hands. As lust killers continue with their murders, the time between killings decreases or the required level of stimulation increases, sometimes both.^[18][25][26]

Kenneth Bianchi, one of the "Hillside Stranglers", murdered women and girls of different ages, races and appearance because his sexual urges required different types of stimulation and increasing intensity.^[26]

Jeffrey Dahmer searched for his perfect fantasy lover—beautiful and eternal. As his desire to find the perfect lover increased, he experimented with drugs, alcohol and exotic sex. His increasing need for stimulation was demonstrated by the dismemberment of victims, whose heads and genitals he preserved. He experimented with cannibalism to ensure his victims would always be a part of him.^[27]

Thrill

The primary motive of a thrill killer is to induce pain or create terror in their victims, which provides stimulation and excitement for the killer. They seek the adrenaline rush provided by hunting and killing victims. Thrill killers murder only for the kill; usually the attack is not prolonged, and there is no sexual aspect. Usually the victims are strangers, although the killer may have followed them for a period of time. Thrill killers can abstain from killing for long periods of time and become more successful at killing as they refine their murder methods. Many attempt to commit the perfect crime and believe they will not be caught.^[18][28]

Robert Hansen took his victims to a secluded area, where he would let them loose and then hunt and kill them.^[28] Lee Boyd Malvo and John Allen Muhammad, the DC Snipers, killed random victims, often at gas stations, shooting them and leaving the scenes unnoticed.^[29] In one of his letters to San Francisco Bay Area newspapers, the Zodiac Killer wrote "[killing] gives me the most thrilling experience it is even better than getting your rocks off with a girl".^[30]

Comfort

Material gain and a comfortable lifestyle are the primary motives of comfort killers. Usually, the victims are family members and close acquaintances. After a murder, a comfort killer will usually wait for a period of time before killing again to allow any suspicions by family or authorities to subside. Poison, most notably arsenic, is often used to kill victims. Female serial killers are often comfort killers, although not all comfort killers are female.^[18][31][32] Dorothea Puente killed her tenants for their Social Security checks and buried them in the backyard of her home.^[33] H. H. Holmes killed for insurance and business profits.^[34]

Power/control

Their main objective for killing is to gain and exert power over their victim. Such killers are sometimes abused as children, leaving them with feelings of powerlessness and inadequacy as adults. Many power/control-motivated killers sexually abuse their victims, but they differ from hedonistic killers in that rape is not motivated by lust but as simply another form of dominating the victim.^[35] Ted Bundy traveled around the United States seeking women to control.^[36]

Medical professionals

Some people with a pathological interest in the power of life and death tend to be attracted to medical professions.^{[37][38][39][40]} These kinds of killers are sometimes referred to as "angels of death"^[41] or angels of mercy. One example is Harold Shipman, an English family doctor, who made it appear that his victims died of natural causes. Between 1975 and 1998, he killed at least 215 patients.^[42] Dr John Bodkin Adams, meanwhile, though acquitted in 1957 of the murder of one patient, is believed to have killed around 163 patients in Eastbourne, England.^[43]

Victims

Criminologists have long recognized that there are links between most serial killers and their chosen victims. Demographically, serial murderers tend to target more women than men, and kill strangers more often than family or acquaintances, as opposed to single-homicide offenders, who tend to kill men and women equally, while killing friends and family more often.^[44]

Serial murderers’ killings are often sexually motivated. The sexual motivation supports the theory that serial murderers tend to have specific criteria and specific sexual interests that motivate their selection of certain victims. This victim selection process sets serial murderers apart from other types of killers.^[44]

In the United States, serial killers prefer to target victims ages 18–50. The majority of victims are white, supporting researchers' claims that serial murder is intra-racial.^[45]

Women serial killers tend to kill those with whom they are already intimately familiar, as opposed to men who usually target strangers. "For female serial killers, historically husbands and their children are first choice as victims. When comparing males who kill children versus women, women kill children at a much higher percentage. The percentage of offenders killing at least one type of victim who is a child, males are at 21% whereas women are at 39%."^[46]

Female serial killers

Female serial killers are rare in occurrence;^{[47][48][49][50]} approximately one in every six serial killers is a woman.^{[citation needed]} They are usually emotionally close to their victims^{[47][48][49][50]} and generally need to have a relationship with a person before killing them.^[48] The methods they use for murder are covert or "low profile", such as murder by poison.^{[47][48][49][51]} They commit killings in specific places, such as their home or a health-care facility (where they then become known as "Angels of Mercy" by the media), or at different locations within the same city or state.^[52][53] Each killer will have her own proclivities, needs and triggers, as specific reasons can only be obtained from the killer herself.^{[47][48][49][54]} On rare occasions, women may be involved with a male serial killer as a part of a serial killing "team".^{[47][48][49][55]}

In a review of published literature on female serial murder, the most common motive identified was material gain. Sexual or sadistic motives are believed to be extremely rare in female serial murderers. Psychopathic traits and histories of childhood abuse have been consistently reported in these women. In a study of 105 female serial killers, the preferred method of killing was poisoning. An analysis of 86 female serial killers from the U.S. found that the victims tended to be spouses, children or the elderly.^[47][48]

A notable exception to the typical characteristics of female serial killers is Aileen Wuornos,^[53][56] who killed outdoors instead of at home, used a gun instead of poison, killed strangers instead of friends or family, and killed for personal gratification.^[57][58]

Serial killers in history

Historical criminologists have suggested that there may have been serial murders throughout history, but specific cases were not adequately recorded. Some sources suggest that legends such as werewolves and vampires were inspired by medieval serial killers.^[59]

Liu Pengli of China, cousin of the Han Emperor Jing, was made king 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 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 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 cousin killed, and Liu Pengli was made a commoner and banished.^[60]

In the 15th century, one of the wealthiest men in France, Gilles de Rais, is said to have abducted, sexually assaulted and killed at least 100 children, mainly boys, whom he had abducted from the surrounding villages and taken to his castle. The Hungarian aristocrat Elizabeth Báthory was arrested in 1610 and subsequently charged with torturing and butchering as many as 600 young girls.

Thug Behram, a gang leader of the Indian Thuggee cult of assassins, has frequently been said to be the world's most prolific serial killer. According to numerous sources, he was believed to have murdered 931 victims by means of strangulation with a ceremonial cloth between 1790 and 1830.^[61] Recent scholarship has cast doubt on the Thuggee cult and suggested that the British in India were confused by the vernacular use of the term by Indians, and may also have used fear of such a cult to justify their colonial rule.^[61]

In his 1886 book Psychopathia Sexualis, psychiatrist Richard von Krafft-Ebing noted 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.^{[citation needed]}

The unidentified killer Jack the Ripper killed prostitutes (the exact number of victims is not known) in London in 1888. Those crimes gained enormous press attention because London was the world's greatest centre of power at the time, so having such dramatic murders of financially destitute women in the midst of such wealth focused the news media's attention on the plight of the urban poor and gained coverage worldwide. He has also been called the most famous serial killer of all time.^{[citation needed]}

American serial killer H. H. Holmes was hanged in Philadelphia in 1896 after confessing to 27 murders. Joseph Vacher was executed in France in 1898 after confessing to killing and mutilating 11 women and children.^{[citation needed]}

Serial killers in popular culture

Serial killers are featured as stock characters in many types of media, including books, films, television programs, songs and video games.^[62] Films featuring serial killers include Psycho, The Silence of the Lambs, Hannibal, Seven, Copycat, Halloween and many others.^[62][63][64]

The television series Dexter features a police blood-spatter pattern analyst who moonlights as a vigilante serial killer.^[65][66] It is based on the novel Darkly Dreaming Dexter. Other notable literature with a serial killer theme includes Norman Mailer's The Executioner's Song, Bret Easton Ellis' American Psycho, Jim Thompson's The Killer Inside Me and Thomas Harris' Red Dragon.^[67][68]

See also

• List of serial killers by country
• List of serial killers by number of victims
• Offender profiling
• Serial crime

References

Bibliography

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External links

• Crime Library's Serial Killer page
• Serial Murder: Multi-Disciplinary Perspectives for Investigators Official FBI publication

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