Killer in Question Canceled Investigation Discovery Series Not Returning for Season 2

On an early morning in 1997, Angie Nihoff is horrified to find her grandmother, Olga Parlante, murdered in her Florida apartment. The next 15 years will pull the family apart as members of the Parlante clan think one of their own kin is a killer.

Three people are killed execution-style inside a Louisiana convenience store's cooler, sparking a true murder mystery. One man gives a series of conflicting confessions, leaving everyone to wonder what really happened that night.
 

In 1987, 11-year-old Teresa McAbee goes missing near her home in Mascotte, FL. When her body is found the next morning, James Duckett, the only police officer on duty in town, comes under suspicion for her murder. But not everyone thinks he's guilty.
 

On Nov. 17, 1990, two deer hunters are found shot dead in the woods of Michigan; eleven years later, cold case detectives arrest Jeff Titus on suspicion of murder, but the original detectives on the case believe Titus is innocent.