Restaurant manager Lisa Kimmel had been driving for hours to visit her family in Montana. She never arrived. Eight days later, her body was found floating in the North Platte River. The police knew Lisa had been tortured and raped for a week before she was finally murdered. But they had no suspects, no witnesses, no clues. Just a strange handwritten letter left on her gravestone? Lisa's murder was never solved-and her car never found-until new DNA...