Article2014

Some warning behaviors discriminate between school shooters and other students of concern.

J. Reid Meloy · Jens Hoffmann · Karoline Roshdi · Angela Guldimann

53 citations0/0 files storedJournal of Threat Assessment and Management

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Gun Ownership and Violence Research Bullying, Victimization, and Aggression Psychopathy, Forensic Psychiatry, Sexual Offending

Abstract

A typology of 8 warning behaviors for targeted violence— dynamic and superordinate patterns which may indicate accelerating risk of violence—were tested in a small sample of German school shooters (n 9) and students of concern (n 31) to see if any warning behaviors would be significantly different between the groups. Five warning behaviors were found to occur with significantly greater frequency in the school shooters and discriminate between the samples: pathway, fixation, identification, novel aggression, and last resort. All effect sizes were large ( .50). The findings are discussed in the context of school-shooting data from Germany and the United States and their implications for threat assessment.

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References

2005Why Most Published Research Findings Are False 2000The School Shooter: A Threat Assessment Perspective 2013The Final Report and Findings of the Safe School Initiative: Implications for the Prevention of School Attacks in the United States 2004Rampage: the social roots of school shootings 1983Sadistic Fantasy, Sadistic Behaviour and Offending 1986Mass, serial and sensational homicides.2001Psychopathy and community violence among civil psychiatric patients: Results from the MacArthur Violence Risk Assessment Study.2011The Role of Warning Behaviors in Threat Assessment: An Exploration and Suggested Typology

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