Category: Crime

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Domestic Mass Casualty Perpetrators: The Association With Unmedicated and Untreated Psychiatric Illness

Twenty-eight of 35 cases in which the assailant survived had a psychiatric diagnosis-18 with schizophrenia, 3 with bipolar I disorders, 2 with delusional disorders, persecutory type, 2 with personality disorders (1 paranoid and 1 borderline), 2 with substance-related disorders without other psychiatric diagnoses, and 1 with posttraumatic stress disorder. Four had no psychiatric diagnosis, and in 3, we did not have enough information to make a diagnosis.Of 15 of 20 cases in which the assailant died, 8 had schizophrenia.

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