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Setagaya family murder

Unsolved Japanese murder case

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The Setagaya family murder (Japanese: 世田谷一家殺害事件, Hepburn: Setagaya ikka satsugai jiken; Setagaya family killings) refers to the unsolved murders of the Miyazawa family in the Kamisoshigaya neighborhood of Setagaya, Tokyo, Japan, on the night of December 30 to 31, 2000.

Mikio and Yasuko Miyazawa, their daughter Niina and their son Rei were murdered during a home invasion by an unknown assailant who then remained in the family's house for several hours before disappearing. Japanese police launched a massive investigation that uncovered the killer's DNA and many specific clues about their identity, but the perpetrator has never been identified.

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