Overview
- The attack occurred shortly before midnight in a commercial building in Dotonbori, with emergency calls coming in around 11:50 p.m.
- Three 17-year-old boys were taken to hospital; one later died from multiple stab wounds to the chest.
- One of the surviving victims was reported unconscious in critical condition, according to NHK reports cited by local media.
- Officers arrested a 21-year-old on Sunday morning about 1.5 kilometers from the scene and recovered a knife in his possession.
- Investigators are evaluating witness accounts of a prior dispute between the youths and the suspect as they examine motive and the sequence of events.