what they have taken away from us. >> trisha's mother made a desperate appeal to tricia on "the jerry springer show." >> hang in there and know we love you and we're doing everything we can to find you. >> despite huge media coverage and their pleas for answers, none ever came. >> it's like she just vanished into thin air. >> tricia was never found. >> young college students, they need to be aware. >> kristen zoeller was a junior at iwu when tricia disappeared. >> we were advised to stay in our dorms if you were a girl. >> but a week after trisha's disappearance, they needed to go to the marsh grocery store. >> you thought you would be safe and you would be fine. >> exactly. not far at all. i can see the campus. what's going to happen? >> it was getting dark by the time they left the shopping center walking the same route tricia would likely have taken.