A serial killer is a person who murders three or more people over a period of more than 30 days, with a "cooling off" period between each murder, and whose motivation for killing is largely based on psychological gratification. 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, gende...
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A serial killer is a person who murders three or more people over a period of more than 30 days, with a "cooling off" period between each murder, and whose motivation for killing is largely based on psychological gratification. 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. The concept had been described earlier, e.g. by German police inspector Ernst Gennat coining the same term in 1930.
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...
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