Mark Pettit is the author of "A Need to Kill: The True-Crime Account of John Joubert, Nebraska's Most Notorious Serial Child Killer." This special 30th Anniversary Edition of Pettit's book reveals never before seen details and evidence from Joubert's case obtained through a series of exclusive face-to-face death row interviews Pettit conducted with Joubert and an exhaustive review of the evidence in the case. During the interviews, Joubert confesses to a third murder in Maine and admits to a string of violent crimes leading up to the murders of his young victims. Pettit is a former TV News anc...