still, the federal prosecutor larry beaumont got larry haul convicted of kidnapping jessica roach. >>ederal system, if you're guilty of a kidnapping, if that kidnapping resulted in a death, them under the sentencing guidelines, it's mandatory life term. >> the jessica roach case was over, but the disappearance of tricia reitler remained unsolved and her parents, gary and donna, would not stop looking. >> we walked the sides of the roads. we walked the riverbeds. we looked under the culverts. we ended up going to crack houses because somebody had a lead. >> if you see something on the side of the road, a garbage bag, whatever, it's like, could that be her? >> it was just a horrendous crime to lose your daughter, never find out what the heck happened to her. >> larry beaumont kept looking, too. >> i actually made arrangements on a couple occasions to go out and look for the body. >> beaumont called in specialized military and law enforcement units to search. >> but we weren't able to find them. so rather than to give up, it occurred to me that obviously larry hall knew. >> beaumont need