hall said he had been looking for a friend's address. but the address he gave didn't exist. so officers let hall go. september 20th, 1993. six months after patricia's disappearance, now 15-year-old jessica roach goes missing in georgetown, illinois. investigator gary miller got the call. >> we all knew that we had something really bad here. we had an abduction. >> jessica's badly decomposed body was found in an indiana cornfield weeks later. but then like patricia's jessica's case went cold. >> there are times you thought you would never solve it. but then you keep going and re-check everything. >> for over a year, miller looked through local police reports. and then a break. a vehicle reported in a county