Ikeda school massacre

Ikeda school massacre
The Ikeda Elementary School where the stabbing took place, pictured 2018
LocationIkeda, Osaka Prefecture, Japan
Date8 June 2001; 23 years ago (2001-06-08)
TargetStudents and staff at Ikeda Elementary School, particularly girls
Attack type
Mass stabbing, school stabbing, mass murder, pedicide, femicide
WeaponDeba knife (blade length about 15.8 cm)
Deaths8[1]
Injured15
PerpetratorMamoru Takuma
MotiveMental illness

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 2024, it is currently the deadliest school attack in Japanese history.