was a Japanese radical leftist and terrorist.World Terrorism: An Encyclopedia of Political Violence from Ancient Times to the post 9/11 era by James Ciment, page 314-316Terrorism: The Essential Reference Guide by Colin P. Clarke, page 101-103 He was born in Osaka and entered the Osaka City University where he became involved in leftist politics, eventually joining the Red Army Faction, which was a schismatic militant subfaction of the Japan Communist League. After many members of the Red Army Faction were arrested by the Japanese police with Mori remaining at large, several members of the group went to North Korea with Japan Airlines Flight 351 and some formed the Japanese Red Army. Mori remained in Japan and eventually became the leader of the United Red Army. Along with Hiroko Nagata, he allegedly killed 12 members and he was arrested in February 1972. He committed suicide by hanging in his cell in Tokyo on January 1, 1973.
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