Texas True Crime: The Riddler | Full Documentary

40 years ago, a Halloween night murder shocked the city. 11-year-old Mary Stiles vanished from her Baytown apartment complex wearing Care Bear pajamas she had put on as a costume.

Her body was discovered days later after police received a strange letter and a map from her killer - then, the clues kept coming. In our Texas True Crime episode, "The Riddler", Tom Abrahams shows us how police tracked down a killer no one expected.