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

Inhuman: A True Crime Podcast

Inhuman Podcast

True Crime

4.6 • 2.8K Ratings

🗓️ 22 January 2026

⏱️ 41 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

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. Click here to join our Patreon. Connect with us on Instagram and join our Facebook group. To submit listener stories or case suggestions, and to see all sources for this episode: https://www.inhumanpodcast.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	What's up you guys? I'm Haley. And I'm Andrea. And this is Inhuman, a true crime podcast. Welcome back, everybody.
0:27.5	I hope you're having a great day whenever you are listening to this.
0:33.2	Today we are going to be covering a suggested case.
0:36.6	It is a quadruple homicide that took place in
0:39.6	Japan just over 25 years ago, and it still remains unsolved. Oh, wow. So this is the story of the
0:49.5	Miyazawa family murders in Seda Gaya, Tokyo in 2000.
0:54.9	And I just want to put a disclaimer that I am doing my absolute best with all the names and
1:00.6	places, pronunciation.
1:02.6	I looked up everything that I could and I'm pronouncing it how videos of people speaking
1:09.1	about this in English pronounced it.
1:11.2	So I'm doing my best, but I'm so sorry because I'm sure I'm going to butcher some of this.
1:15.5	It's okay.
1:16.0	You're doing your best.
1:16.7	That's all you can do.
1:18.0	Very true.
1:19.0	So with that, let's just get into it.
1:21.7	On the morning of December 31st, 2000, a mother was worried about her daughter.
1:26.8	She hadn't been picking up the phone, so she went to check on her and her family at their home in the Kami-Soshi-Gaya neighborhood of Seda-Gaya in Tokyo, Japan. When Yasuko Miyazawa's mother, Haruko arrived, no one answered when she rang the doorbell.
1:48.9	Concerned, she used her key to enter the home and found a horrific scene.
1:57.0	Inside were the bodies of Mikio and Yasuko Miyazawa and their eight and six-year-old children, Nina and Ray.
1:58.7	Oh my gosh.
2:03.9	44-year-old Mikio Miyazawa worked for Interbrand, the international marketing firm that branded the term Wi-Fi in 1999. Okay. And we don't know exactly what he did there,
	...

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