In July of 1986, a 19-year-old man was found hanging from a tree near his Maryland home. Authorities swiftly ruled it a suicide, but those closest to him questioned everything about the scene; from the small tree, which could barely support his weight, to the lack of an autopsy, to the suspicious friends who seemed to vanish in the wake of his sudden death. Years later, his mother received a suspicious envelope on her doorstep, and new evidence would challenge the original ruling. This is the death of Keith Warren.

In July of 1995, a 24-year-old woman in Alaska headed out on a date with a man she had only recently met. She was last seen at a crowded summer fair in the forest, surrounded by tourists - but by the time the sun rose the next morning, she was gone. What followed was a desperate search in the unforgiving Alaska wilderness, and eerie silence from her date, which only deepened the mystery. This is the disappearance of Erin Gilbert.

In the summer of 1990, a serial killer originally dubbed “The Charmer” began his crusade of committing brutal acts of violence against Seattle-area women, then placing their bodies in crude positions before abandoning them. Locals were terrified of the perverse madman loose on the streets of their city - but, thanks to DNA and a few careless slip ups, a suspect was identified. And quickly, the evidence against him began to stack. These are the gruesome murders of Mary Anne Pohlreich, Carol Beethe, and Randi Levine - committed by the Bellevue Killer.