What's the creepiest Unsolved Mysteries story you remember?
The one that always haunted me was the disappearance of Tara Calico. She went missing in 1988 when she was 19 and the episode talked about the disappearance of her, as well as a young boy. The story included a polaroid photo that was found in a convenience store parking lot of a girl resembling Calico and a young boy tied with their hands behind their backs and duct tape over their mouths. It was later concluded that the boy in the story wasn't the boy in the photo but it's been inconclusive on Calico and the case is still unsolved. I was 15 or 16 when this aired and the photo disturbed me then and still does today. Here's the Wikipedia story on Calico which includes the photo (WARNING, disturbing image).
https://en.wikipedia.org/wiki/Disappearance_of_Tara_Calico
Any other creepy stories you guys remember from Unsolved Mysteries?