Daisaku Kōmoto (河本 大作, Kōmoto Daisaku; January 24, 1883 – August 25, 1955) was an officer in the Japanese Imperial Japanese Army active during the early Shōwa period. He held the rank of colonel. He is known as the mastermind of the assassination of Zhang Zuolin.
Source: “Daisaku Kōmoto”, English Wikipedia (CC BY-SA 4.0), excerpt