Where it showed a white girl, clothes ripped, running away from some black boys in the middle of a cemetery? It came out in the 90's. I think it took place in Ohio. She had just broken it off with her boyfriend, needed a ride, and was picked up by a bunch of his friends, later to be raped and murdered, I think. I remember the preview because it showed the boys catching up to her and then it stopped with Stack giving one of his ominous introductions.

Does anyone know what episode I am talking about?

Jessica Keen

https://unsolvedmysteries.fandom.com/wiki/Jessica_Keen

Thank you for responding. I am glad they finally solved the case after almost 20 years. That was one of those cases as a kid that scared the **** out of me. The re-enactment gave me nightmares. Amazing that her boyfriend and his friends had nothing to do with the rape and murder; a red herring, if you will.