A Killer Left His DNA Everywhere… 25 Years Later, He’s Still Unknown

On December 30, 2000, a family of four was murdered inside their home in Setagaya, Tokyo. But the killer didn’t immediately flee. Investigators believe he stayed inside the house after the murders—eating food, using the family’s computer, treating an injury and leaving behind an unbelievable amount of evidence. Blood. Fingerprints. Clothing. Shoeprints. More than 25 years later, investigators still don’t know who he was. This is the disturbing unsolved case of the Setagaya Family Murders. Welcome to Final Signal File — exploring true crime, disappearances, unexplained events and mysteries that still don’t have answers. Subscribe for more cases. #TrueCrime #UnsolvedMysteries #SetagayaMurders