Total Public Cases: 1
Early on May 21, 1938, Mutsuo Toi killed 30 people, including his grandmother, and wounded three others in rural Kamo near Tsuyama, Okayama, Japan. He used firearms and bladed weapons before dying by suicide.
Country: Japan | State/Province: Niigata, Japan | Incident Type: Murder-Suicide | Date: May 21, 1938
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