Terry Gross

Psychiatrist James Gilligan. He's spent twenty-five years treating violent men, as former medical director of the Bridgewater State Hospital for the criminally insane, and director of mental health for the Massachusetts prison system.

Psychiatrist James Gilligan. He's spent twenty-five years treating violent men, as former medical director of the Bridgewater State Hospital for the criminally insane, and director of mental health for the Massachusetts prison system.

Actor Robert Duvall. His roles include his film debut as Boo Radley in "To Kill a Mockingbird," a crazy colonel in "Apocalypse Now," counsel to the mob in "Godfather" I and II, and a country singer in "Tender Mercies" (for which he won a Oscar). In all he's acted in more than 50 films. His latest is "A Family Thing," in which he co-stars with James Earl Jones.