
In 2008, 16-year old Meghan Landowski is found stabbed to death. A seemingly open and shut case turns into a months' long whodunit. Police methodically eliminate suspects in their hunt for a young girl's killer.

In 2001, 20-year old ranger Carrie Nelson is found beaten to death in a park office. The senseless killing turns into a five year long whodunit. Investigators turn to science as they track down an elusive and unlikely killer.

For eight years, the Bike Path Killer terrorized women in the Buffalo area - committing seven rapes and two murders. Then, without explanation, the attacks stopped. After a 12-year absence, the Bike Path Rapist resurfaces.

Human remains found in a sewer are identified as Tristan Jensen, a 14-year-old boy who was reported missing. Investigators find it hard to believe that another teenager could be the prime suspect in one of the most gruesome murders they have ever seen.