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The authors document the childhood neuropsychiatric and family characteristics of nine male subjects who were clinically evaluated as adolescents and were later arrested for murder. Those subjects are compared with 24 incarcerated delinquents who did not go on to commit violent offenses. The future murderers displayed a constellation of biopsychosocial characteristics that included psychotic symptoms, major neurological impairment, a psychotic first-degree relative, violent acts during childhood, and severe physical abuse. The authors relate this combination of factors to prediction of violence and discuss ethical issues that are involved in intervention to prevent violence.
Lewis et al. (Tue,) studied this question.