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Psychopathy has been a sustained interest among psychologists and, to a lesser extent, among criminologists. Studies on psychopathy have tended to focus on its measurement and predictive ability, primarily in adolescence and primarily among more serious offenders. This article moves beyond prior research on psychopathy and is the first to link childhood risk factors and offending trajectories measured through age 40 to psychopathy at age 48 in a community sample of several hundred South London males in the Cambridge Study in Delinquent Development. Results show that although childhood environmental and, to a lesser extent, childhood individual risk factors are associated with a range of psychopathy measures, controlling for offending trajectories renders most of those childhood risks insignificant. Evidence also shows that while extreme scores of psychopathy are rare among this community sample …