"Up in the Air" author Kirn tells the real-life story of his friendship with a man calling himself Clark Rockefeller. Slowly, Kirn discovers that the person he was acquainted with for 15 years is actually a murderer and kidnapper. "The reporter who's supposed to be savvier and smarter than everyone else gets taken in by a con man," Nelson says of Kirn. "He just can't face it."
