Ikeda school massacre
| Ikeda school massacre | |
|---|---|
The Ikeda Elementary School where the attack took place, pictured in 2018 | |
| Location | Ikeda, Osaka Prefecture, Japan |
| Coordinates | 34°49′13″N 135°26′21″E / 34.820152°N 135.439167°E |
| Date | 8 June 2001 10:15 – 10:20 a.m. (JST) |
| Target | Students and staff at Ikeda Elementary School, particularly girls |
Attack type | Mass stabbing, school stabbing, mass murder, pedicide, femicide |
| Weapon | 15.8-centimetre Deba knife |
| Deaths | 8 |
| Injured | 16 (including the perpetrator) |
| Perpetrator | Mamoru Takuma |
| Motive | Hatred towards society |
The Ikeda school massacre (sometimes referred to as the Osaka school massacre) was a school stabbing and mass murder that occurred in Ikeda, Osaka Prefecture, Japan, on 8 June 2001. Mamoru Takuma, a 37-year-old ex-convict with a history of mentally disturbed and anti-social behavior, stabbed eight students to death and seriously wounded fifteen others in a knife attack that lasted several minutes. Takuma was sentenced to death in August 2003, and executed in September 2004. As of 2025, it is currently the deadliest school attack in Japanese history.