his whole career. >> so, when the cold case unit got involved, they broadened their search. they looked at every sexually motivated crime in the region and got a break. just two months after julie estes' murder, 30 miles away, in another jurisdiction, there had been another convenience store crime, almost identical to julie's, except, in this case, the victim survived. a 19-year-old convenience store worker, carla nobles, had just closed the store and given a ride to a young man she met in the parking lot. >> sure, get in. >> thanks. >> she voluntarily let him in the car, having no idea what he was capable of. she did a quick drive to the post office, where he said he wanted to go. >> before they got there, the man pulled a knife, forced her to drive to an isolated field and sexually assaulted her. he then forced her to drive