Hisoka MAEJIMA, who came straight right after the incident and saw Okubo's corpse, expressed it 'the flesh was scattered and the bones were smashed. Additionally, the skull was cracked, so I could see the brain still shaking.'
事件直後に駆けつけて遺体を見た前島密は、「肉飛び骨砕け、又頭蓋裂けて脳の猶微動するを見る」と表現している。