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J Forensic Sci. 1997 Mar;42(2):326-9.

Predatory violence during mass murder.

Author information

  • Department of Psychiatry, University of California, San Diego, USA.


A case of mass murder by a 35-year old male is reported. Following a week of separation from his spouse and temporary loss of custody of his son, the subject went to his wife's worksite and murdered her and the store manager, wounded a passerby in a car, and murdered a police officer arriving on the scene. Weapons used were a .32 caliber revolver, a 9-mm pistol, a 7.62-mm assault rifle, and a .50-caliber rifle. The fact pattern of the case is shown to be quite consistent with a predatory mode of aggression-violence that is planned, purposeful, emotionless, and not preceded by autonomic arousal. The forensic importance of considering mode of violence, whether predatory or affective, independently of psychiatric diagnosis, is emphasized.

[PubMed - indexed for MEDLINE]
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