Murder Down Memory Lane: When a five-year-old describes her mother's killer as a "ninja", police set out to put the surprising killer behind bars. (S8, ep 9)
Silent Night: When a young woman is found murdered in her Oregon apartment on Christmas Day, investigators soon learn the terrifying truth about her killer. (S8, ep 8)
Last Curtain Call: When a former actor is gunned down in Yuma, Arizona, police chase leads across the southwest until they finally get their man. (S8, ep 7)
Series exploring some of the most baffling and challenging investigations in modern law enforcement. (S8, ep 6)
Series exploring some of the most baffling and challenging investigations in modern law enforcement. (S8, ep 5)
Series exploring some of the most baffling and challenging investigations in modern law enforcement. (S8, ep 4)
Final Lesson: The killer of a Santa Monica art teacher remains at large for years as police use every trick in their arsenal to finally hunt him down. (S8, ep 13)