Thanks to Insty for letting me know about my old colleague Dr. Michael Stone's new book, Anatomy of Evil. Quote from the Amazon site:
What do psychology, psychiatry, and neuroscience tell us about the minds of those whose actions could be described as evil? And what will that mean for the rest of us? Stone discusses how an increased understanding of the causes of evil will affect the justice system. He predicts a day when certain persons can safely be declared salvageable and restored to society and when early signs of violence in children may be corrected before potentially dangerous patterns become entrenched.
Pretty to think so, but that day will never come, Dr. Stone.