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Description
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# of Proven Kills
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Killer
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A religious and cult leader, who initiated, and was responsible for a mass suicide and mass murder in Jonestown, Guyana.
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923
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Jim Jones
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Gang of 16 that poisoned Italian immigrants with arsenic in order to collect their life insurance. The leaders, cousins Herman and Paul Petrillo, were executed on the electric chair in 1941 while the rest were given life sentences.
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114
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Philadelphia poisin ring
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Doctor who worked at Kermit Gosnell's abortion clinic, testified that he snipped the spines of more than 100 babies after seeing them show signs of life.
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100+
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Steven Massof
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Truck painter who confessed to killing 71 women. He almost exclusively targeted sex workers from Seattle. Suspected of killing over 90 victims, confessed to 71, convicted of 49. Sentenced to life without parole.
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49
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Gary Ridgway
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Self-professed Angel of Death. Worked as an orderly in Cincinnati-area hospitals and preyed on his patients. Claimed to have killed 87 patients starting at age 18. Active 1970–1987. Sentenced to 28 life sentences in Ohio.
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37
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Donald Harvey
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American serial killer known for his charisma and good looks. He officially confessed to 30 homicides and some estimates run upwards of 100 or more. Infamous for escaping from prison twice and murdering multiple victims in one day. He was executed in the electric chair in 1989.
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35
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Ted Bundy
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Known to have murdered a minimum of 33 teenage boys and young men, 26 of whom he buried in the crawl space of his Chicago home. He was known as the "Killer Clown" due to the fact he often entertained children at social events dressed in a self devised clown costume. He was executed in 1994.
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33
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John Wayne Gacy
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Nurse that confessed to poisoning 31 patients for her own sexual gratification. After overdosing them she would get in bed and lie with them as they died. Found not guilty by reason of insanity and interned in a mental institution until her death in 1938.
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31
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Jane Toppan
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Responsible for the Houston Mass Murders, the torture and murder of young boys in Pasadena, Texas. Murdered by accomplice when he (killer) turned on him (accomplice).
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29
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Dean Corll
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Convicted of murdering ranch laborers and burying them in orchards. He was sentenced to 25 terms of life imprisonment.
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25
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Juan Vallejo Corona
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Believed to have perpetrated the Atlanta murders of 1979–1981. After being convicted of two murders and sentenced to life imprisonment, authorities closed 22 other unsolved murders, declaring him to have been the perpetrator.
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24
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Wayne Williams
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Louisianan serial killer, known locally as the Bayou Strangler. Sentenced to 8 life terms.
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23
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Ronald Dominique
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Necrophiliac who targeted and strangled landladies throughout the West Coast during 1926; he was also known as "Gorilla Killer" or "the Dark Strangler". Hanged January 1928.
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22
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Earle Nelson
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Confessed to killing 41 women in mostly Florida and New Jersey areas. Some controversy surrounds the case as he is believed by some to have been a serial confessor.
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22+
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Gerald Stano
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Would pick up young male hitch-hikers or young men from gay bars near Redondo Beach, California, and kill them. Sentenced to life.
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21
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Patrick Kearney
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Him and three accomplices are known to have murdered a minimum of 21 youths in and around Los Angeles. As the majority of his victims were discarded alongside various southern California freeways, he became known as the Freeway Killer. He was convicted of 14 of the freeway murders and was executed in 1996.
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21
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William Bonin
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