On October 26, 1979, Park Chung-hee, the third President of South Korea, was assassinated. and December 12, Republic of Korea Army Major General Chun Doo-hwan, commander of the Security Command acted the Coup d'état. Next year, military power forced the Cabinet to extend martial law to the whole nation. In Gwangju, people popular uprising opposition to Coup d'état. Initialy, Korean police head off the protest. An, Boeng-ha, Commissioner General of the Jeonnam Provincial Police Agency, was rejected the order of the military regime, shooting the citizen. He was removal from his position by this decision, and tortured by the Army Counterintelligence Corps.(today Defense Security Command)