2023 Nagano attack
| 2023 Nagano attack | |
|---|---|
Location of incident | |
| Location | 36°44′19″N 138°20′32″E / 36.73861°N 138.34222°E Nakano, Nagano Prefecture, Japan |
| Date | May 25–26, 2023 4:26 p.m – 4:37 a.m JST (UTC+09:00) |
Attack type | Stabbing, mass shooting, shootout, mass murder |
| Weapon | Shotgun loaded with slugs, knife |
| Deaths | 4 |
| Injured | 0 |
| Perpetrator | Masanori Aoki |
| Motive | Delusions; retaliation against perceived slights |
On 25 May 2023, a man killed four people in a shooting and stabbing attack in Nakano, Nagano Prefecture, Japan.