Clark Rockefeller--whose real name is Christian Karl Gerhartsreiter--pleaded not guilty to murder charges this morning. Originally from Germany, Gerthartsreiter was a con man who pretended to be a Rockefeller, among many identities for decades here in the U.S. He was unmasked a few years ago after he was arrested for kidnapping his own daughter and leading police on an international manhunt. He's been serving prison time in the East Coast. Now, he's been extradited to L.A. to face charges that he killed a San Marino man back in 1985. Mark Seal, author of The Man in the Rockefeller Suit, joins Madeleine to talk about the case.