"Mama, I killed Dean," confesses Elmer Wayne Henley Jr. "Dean" refers to serial killer Dean Corll, who murdered at least 28 teenage boys in Houston between 1970 and 1973. As Corll's accomplice, Henley lured victims to Corll's home and participated in several murders. Henley fatally shot Corll on August 8, 1973. He then called 911 to confess. In this footage, KPRC's Jack Cato follows Henley and police to the storage shed where Corll buried several victims. At the scene, Henley uses the radio telephone in Cato's car to call his mother. Cato's footage of the conversation was picked up by NBC Nightly News that evening. Henley was convicted of six murders and sentenced to six consecutive life terms. The series of crimes became known as the Houston Mass Murders.