The Dai Ichi Daihoumaru Ship Incident (Japanese: 第ä¸Â大é¦丸äºÂ件, Dai Ichi Daihoumaru jiken) refers to an incident where the South Korean Coast Guard shot and killed Seto Jujiro (羸 éÂÂ次éÂÂ), the head fisherman of the Japanese ship Dai Ichi Daihoumaru on February 4, 1952.