Night Stalker or the President's spine? Did the ex-Green Beret murder his family? Can a dog named Tucker help save the whales?

Writing jokes for Johnny Carson & gossiping with Elizabeth Taylor. Ken Levine tells all.

The President's spine? The Night Stalker? Portrait of a powerful woman. Valerie Jarrett.

Oh, scat! Can a dog named Tucker help save the whales?

Did Army doctor and Green Beret, Jeffrey Macdonald, murder his family? Documentary film maker, Errol Morris, takes on the ultimate cold case.