Evil is a religious concept, it's not a scientific concept.

Dorothy Otnow Lewis

Dorothy Otnow Lewis is an American psychiatrist and author who has been an expert witness at a number of high-profile cases. She specializes in the study of violent individuals and people with dissociative identity disorder (DID), formerly known as multiple personality disorder. Lewis has worked with death row inmates as well as other prison inmates convicted for crimes of passion and violence, and was the director of the DID clinic at Bellevue Hospital, associated with New York University in New York City. She is a professor of Psychiatry at Yale and New York University and is the author of Guilty by Reason of Insanity, a book she wrote based on research done with the help of neurologist Jonathan Pincus.

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