i had a van. hall said he raped and strangled a girl here, too. and then he identified his victim by pointing to trisha's picture. trisha's disappearance had remained a mystery for 18 months. >> we were just kind of sitting on the sidelines waiting for information to come in. >> with little evidence and local police insisting on another suspect, trisha's parents, gary and donna still suffered. >> with each thing that came in the urgency was great. and the heartache was great, too. anticipation and the hope. >> hall's confession met the reitler's might at least find their daughter. and that gary miller had found the killer of jessica roach. but the next day, hall changed his story. >> as i was talking to him he said, i was just telling you about my dreams. that didn't really happen. he said, it was just my dreams.