Indian Predator: The Diary of a Serial Killer

Police identify a decapitated body as a missing reporter and trace calls to a suspect who makes an unsettling confession, but there's more to his story.

Names in Ram Niranjan's diary suggest a grim pattern; as experts discuss his potential motives, he shares his own side of the story.

Insider accounts of convicted killer Ram Niranjan's behavior in jail; a look at Niranjan's history points to his delusions and desires.