True Crime Files

n 1971, US Marine Elijah Butler was murdered four days after marrying his fiancee, Geraldine. His killer remained unknown until a cold case unit reopened the investigation in 2011.

In April 2004, Melanie and Bill McGuire, married five years with two sons, planned to move to a new home. Instead, Bill was found shot, dismembered, and discarded in a suitcase.

What possesses a child to kill another child?