Children playing along the shore of the Wisconsin River come across garbage bags containing body parts.
The disappearance of an Anchorage nurse is investigated.
A 15-year-old cold case involving the arson murder of a young surfer is reopened.
A glamorous flight attendant disappears and the story makes headlines. An intense search reveals few clues. But a graveside discovery eventually forces police to take a second look at some already familiar faces.
The investigation into the murder of a 14-year-old girl, who was brutally beaten and set on fire.
When the naked blood-soaked body of a young woman is found on the floor of her Orlando apartment, it's up to investigators to find her killer before he strikes again.
After a respected widow is beaten to death in her Salt Lake City home, investigators suspect she knew her killer, but it will take 20 years before a set of children's fingerprints can put him at the scene of the crime.
A high school senior is murdered in her family's Minnesota farmhouse, but the case soon goes cold; years later, a fresh set of eyes spots an overlooked clue, but cold case detectives will need more to convict the killer.
A New Hampshire man is shot dead through his screen door; investigators are stumped until they uncover a seething grudge and a culprit closer to home than anyone could have imagined.
In southern Louisiana, a task force forms to hunt for a serial killer following a series of deadly home invasions.