Christian Longo is the main antagonist of the 2015 drama/mystery and suspense film True Story.
He is a psychopath accused and imprisoned for killing his family, a crime he really did do. He was being interviewed by the book writer/author Michael Finkel while still in prison. Either during or after the interview with Michael Finkel, he creepily plans to take the name Michael Finkel with a deadly prison escape and terrorize Michael Finkel by using the fake name Michael Finkel himself. The cat and mouse game he plays with Michael after it is really creepy.