This past week, a parole board recommended parole for a convicted murderer. In 2001 Torie Lynn Knapp was brutally stabbed to death by her then 15-year-old son Parker Chamberlin.

This was a gruesome murder that shocked everyone who knew both the victim and the killer. How could a teenager who appeared to have a close and loving relationship with his mother...kill her...and in such a brutal way?

It's a question everyone has-the family, friends of the family, even the detectives who investigated the case.