William C. Dear has a theory: O.J. Simpson didn't do it. And he thinks he can prove it. In this shocking interview, conducted after the death of Orenthal James Simpson, Dear discusses with Greg Kelly the subject he's written two books about. The author details why and how, he says, Simpson martyred himself to save his son a lifetime in prison. Now that Simpson is dead, Dear hopes the public will look at the "trial of the century" in a new light.