Investigating Robert Durst

Ever since Jeanine Pirro heard about the 1982 disappearance of Kathleen Durst, she has suspected Kathie's husband Robert, of killing her. Pirro re-opened the investigation into Durst when she was Westchester District Attorney in 2000, and now after the successful release of HBO's "The Jinx: The Life and Deaths of Robert Durst," Pirro joins us to discuss her new book "He Killed Them All."