Intrinsic and Environmental Characteristics of Juvenile Murderers

The biopsychosocial characteristics of a sample of 13 juvenile murderers, evaluated after committing homicide, were compared with those of 14 violent, incarcerated delinquents and those of 18 nonviolent incarcerated delinquents. The juvenile murderers did not differ significantly from other very violent but nonhomicidal delinquents. A constellation of neuropsychiatric and family characteristics, however, distinguished the murderers from the nonviolent delinquents. The 13 juvenile murderers evaluated after their homicidal acts were also compared with nine juvenile murderers evaluated before committing homicide. Differences between these groups are described in relation to the timing of their evaluations.