In a document submitted later to the Edo bakufu by Yoshimoto MORI, the lord of the Hagi domain, he wrote that the situation was as follows and it was Riuemon who started a violent action first.
後に萩藩主･毛利吉元が江戸幕府へ提出した願書によると、下記のように里右衛門が先に手を出したとある。