Subsequently, there was an anonymous tip that led to the discover that TOMO no Yoshio was the true culprit, whereupon he was banished, while members of the Otomo and Ki clans, which had also been implicated in the crime, were punished in great numbers, which was big blow for these ancient great clans (Otenmon Incident).
その後、密告があり、伴善男が真犯人とされ、流罪となり、連座した大伴氏、紀氏が大量に処罰され、これら上古からの名族へ大打撃を与えた（応天門の変）。