Overview
- Investigators are examining whether the suspect’s long‑standing, one‑sided feelings for the victim’s husband and a reunion about five months before the crime relate to the attack.
- The Aichi Prefectural Police re‑examined past work, listed hundreds who had not undergone DNA‑type testing, and began voluntary interviews this year.
- Police say the suspect had long refused testing but appeared on October 30 to consent, leading to a match and her arrest on October 31.
- Evidence cited by police includes indications the assailant injured a hand during the stabbing and washed away blood in the apartment’s washroom.
- The victim’s husband kept the crime scene apartment for 26 years and continued seeking information, while police now pursue how the suspect learned the address and the full motive.