Liz and David Carroll could spend life in prison after the death of Marcus Fiesel in August 2006. The couple had wrapped the non-verbal autistic 3-year-old in a blanket and left him in a closet for nearly 30 hours. When they returned, the child was dead. David Carroll and his live-in girlfriend attempted to dispose of the body by burning it and dumping the remains in the Ohio River. Both were eventually arrested and tried for their crimes. Originally aired Feb. 25, 2007