Overview
On the night of December 30-31, 2000, Mikio (44), Yasuko (41), Niina (8), and Rei (6) Miyazawa were killed inside their Kami-Soshigaya home in Setagaya, Tokyo. Investigators believe the intruder entered through a second-floor bathroom window beside Soshigaya Park, remained in the house for hours, used the family computer at about 1:18 a.m., and left behind blood, fingerprints, clothing, and other forensic evidence without being identified. Yasuko's mother discovered the bodies at about 10:40 a.m. on December 31; the case remains unsolved, with the Tokyo Metropolitan Police Department still publicizing a total reward of up to 20 million yen.
Featured Book
A directly case-specific book focused on the Miyazawa family murders, making it a better featured-book fit than a broader Japan true-crime collection.
Best for readers who want a book devoted specifically to the Setagaya family murders.
As an Amazon Associate, True Crime Atlas may earn from qualifying purchases.
Case At A Glance
Low confidence
Status: Unsolved
Also known as: Setagaya family murder, Setagaya family killings, Miyazawa family murders, Setagaya massacre
Coverage: 11 timeline events, 6 persons, and 4 locations
Sources collected: 27 sources