mouth, he had drawn blood. >> hall insisted it was all just staged, to make a play for attention. to feel important to police. >> i put a bunch of stuff in that van that i drove around with because i knew they'd eventually search my van and find them. >> during larry's trial, his twin brother, gary, tried to provide him an alibi. still, federal prosecutor larry beaumont, got hall convicted of kidnapping jessica roach. >> in the federal system, if you're guilty of a kidnapping and that kidnapping resulted in a death, then under the sentencing guidelines, it's a mandatory life term. >> the jessica roach case was over. but the disappearance of trisha reitler remained unsolved. and her parents, garry reitler and donna, could not stop looking. >> we walked the sides of the roads. the riverbeds. we looked under the culverts. you know?