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Author(s) Meloy, John Reid
Hempel, Anthony G.
Gray, B. Thomas
Mohandie, Kris
Shiva, Andrew
Richards, Thomas C.
Year 2004
Title A Comparative Analysis of North American Adolescent and Adult Mass Murderers
Published in Behavioral Sciences and the Law, Vol. 22, No. 3
Pages 291–309
DOI 10.1002/bsl.586
Link [1]
Abstract Thirty adult mass murderers and 34 adolescent mass murderers in North America are compared on both offender and offense variables to delineate similarities and differences. Findings indicate a plethora of psychiatric disturbances and odd/reclusive and acting-out personality traits. Predisposing factors include a fascination with weapons and war among many of the adolescents and the development of a “warrior mentality” in most of the adults. Precipitating factors indicate a major rejection or loss in the hours or days preceding the mass murder. Results are interpreted through the lens of threat assessment for targeted violence (Borum, Fein, Vossekuil, & Bergland 1999), recognizing that a fact-based, dynamic behavioral approach is most useful for mitigating risk of such an extremely low-base-rate violent crime.
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