. >> in 1995, detective derek mclaughlin of the east point police department reopens the case which haseen cold for ten years. >> my chief at the time came up to me with this box filled with binders and notes and things of that nature and he said, this was the zarzycki case, solve it. >> detective mclaughlin's re-examination leads to arthur ream, the father of cindy's boyfriend, scott. >> art asked her to meet him at the dairy queen for a surprise birthday party for scott. and i guess the birthday party was just a ruse to get her to go with him. >> the detective soon discovers that ream is a convicted criminal and is in prison. >> he was convicted of indecent liberties with a minor. he served 1975 to 1978, he served three years in prison. after that he was out and about all the way up until 1997 when he was convicted of the rape of a 13-year-old girl. >> detective mclaughlin believes he's found cindy's killer. >> i'm theorizing he picked her up, taken her to a place, went to go rape her, she resisted, tried to get herself out of that situation, couldn't, and he killed her. >> but with n