These ex-"samurai" were followers of the by-then abandoned "sonnō jōi" movement and retained a zealously xenophobic antipathy to foreigners and Western ideas. On the night of October 9, 1869, he and several associates were attacked at an inn in Kyoto. Wounded in several places, he barely escaped with his life by hiding in a bath full of dirty water. The wound on his leg would not heal and he traveled to Osaka to be treated by the Dutch doctor A. F. Bauduin, who wanted to amputate his leg. However, before the operation could be performed, Ōmura succumbed to his wounds in early November of that year.