(1).A worst serial killer is someone who has murdered three or more people over a period of more than a month, with a cooling-off period between murders. The motive is usually based on psychological (often sexual) gratification, though the motives may also include anger, thrill, money, and attention seeking.
(2) Most worst serial killers suffered child abuse. Neglect and child abuse not only impair a child’s self esteem, they also interfere with his or her ability to function in society, succeed academically, and form healthy relationships with people.
(3) Former FBI Special Agent Robert K. Ressler (1937–2013) is the man credited with coining the term “serial killer” in 1971
(4) America’s first serial killer is considered to be Dr. H.H. Holmes, who confessed to 27 murders in the late 1890s. He claimed that he could not help the fact that he was “a murderer, no more than the poet can help the inspiration to sing.”
(5) While many worst serial killers were abused or beaten as children, there are exceptions. Jeffrey Dahmer had an apparently normal upbringing, yet became one of the most horrible sex murderers in popular culture. His father wrote a book, A Father’s Story, which searches for explanations for his son’s deviance.
(6) Almost all serial killers admit that they started by acting out their fantasies on small animals before they moved to humans and that animal torture brought them a great source of pleasure. Given that most serial killers are from dysfunctional families, such pathological and abnormal behavior may be ignored. Jeffrey Dahmer’s father, for example, had no qualms that his son performed animal dissections.
(7) Many worst serial killers will keep “souvenirs” of their crimes. For example, when Ted Bundy was asked why he took Polaroids of his victims, he said, “when you work hard to do something, you don’t want to forget it.
(8) Some historical notorious worst serial killers include the 15th-century nobleman Gilles de Rais who fought alongside Joan of Arc during the Hundred Years War. After she was executed, he had his servants lure young boys to his castle where he would torture, sexually assault, and kill them
(9)
The motives of serial killers generally fall into four categories:
1) visionary (someone who feels compelled by entities such as God or the Devil to murder);
2) mission-oriented (to rid the world of homosexuals or prostitutes or to cure a societal ill);
3) hedonistic (someone who derives pleasure from killing);
4) power- or control-hungry. The categories overlap considerably.
(10)
Although it is impossible to predict if a child will grow up to be a serial killer, the three warning sings of future psychopathic behavior are:
1) animal torture,
2) prolonged bed-wetting,
3) juvenile pyromania. Criminologists call these symptoms “The Triad.