The Killer Who Stayed: The Setagaya Family Murder

In today's episode, we’re traveling to Tokyo to delve into a crime known as the Setagaya Family Murder, one of Japan's most perplexing unsolved cases. What makes it stand out is that, instead of fleeing after committing a horrific mass murder, the killer remained in the victims' home for several hours, displaying behavior that can only be described as bizarre. More than two decades later, this case continues to haunt investigators.