Episode 475: The Unsolved Miyazawa Family Murders (The Setagaya Murders)

Still one of Japan’s largest unsolved cases, the quadruple homicide of the Miyazawa family in Tokyo’s Setagaya neighborhood took place in the middle of the night on New Year’s Eve 2000. The murders of Mikio, Yasuko, Niina, and Rei Miyazawa remain unsolved despite a plethora of evidence being left behind by the killer, including blood, DNA, and fingerprints. There is still a 20-million-yen reward and the community and family remains hopeful that one day, the killer will be caught.

Sources for this episode:

https://www.japantimes.co.jp/news/2025/12/30/japan/crime-legal/setagaya-murder-search/

https://www.keishicho.metro.tokyo.lg.jp/multilingual/english/safe_society/wanted/seijo.html

https://www.tokyoweekender.com/art_and_culture/history/the-setagaya-family-murder-case/

https://www.abc.net.au/news/2019-12-29/the-house-of-horrors-in-setagaya-japan/11771304

https://unresolved.me/the-setagaya-murders

https://www.asahi.com/ajw/articles/14085667

https://www.buzzfeednews.com/article/drumoorhouse/setagaya-family-murders-unsolved