According to "Documents of the Ito family, "HONMA was surrounded by a couple of men when he came out drunk from a fancy Japanese-style restaurant, and although both of his arms were pinned down and his long and short swords were taken away, he furiously fought against them and made some of them shrink back; however, in an unguarded moment, he was stabbed in the ribs, and was beheaded when he was on the verge of dying.
『伊藤家文書』によると当日、本間は料亭から酔って退出したところを数人の男に取り囲まれて両腕を押さえつけられ、刀と脇差を取り上げられながらも激しく抵抗して格闘し数名を怯ませたものの、わずかな隙にわき腹を刺され、瀕死のところに止めをさされて斬首された。