Overview
- Three people—one presumed adult man and two women—were found collapsed around 12:20 p.m. on Oct. 31 in a house in Sapporo’s Kita Ward and were later pronounced dead at a hospital.
- Hokkaido police arrested Junichi Nakamura, 41, on suspicion of murdering one of the women by stabbing her with a knife or similar weapon.
- Police say Nakamura turned himself in at the Sapporo Kita Police Station that morning carrying a bloodstained blade and stated he had killed his family.
- Officers, acting on his account, discovered the three on the first floor of the two‑story residence and noted injuries consistent with stabbing.
- Authorities are working to confirm the victims’ identities and precise causes of death, and they are examining how the other two deaths occurred.