History of Derry of the Troubles". On Sunday January 30, 1972, 13 unarmed civilians were shot dead by British paratroopers during a civil rights march in the Bogside area. Another 13 were wounded and one further man later died of his wounds. This event came to be known as Bloody Sunday. Because of these events, certain areas of Derry produced strong support for republican paramilitaries. Up to 1972, both the Provisional Irish Republican Army and Official IRA operated in the city. However, in 1972 the OIRA called a ceasefire following their unpopular killing a local 18-year-old who was on leave from the British
Battle of the Bogside police. That night, police officers broke into homes in the Catholic Bogside area and assaulted several residents. An inquiry led by Lord Cameron concluded that, "a number of policemen were guilty of misconduct, which involved assault and battery, malicious damage to property...and the use of provocative sectarian and political slogans". After this point, barricades were set up in the Bogside and vigilante patrols organised to keep the police out. It was at this point that the famous mural with the slogan "You are now entering Free Derry" was painted on the corner of Columbs Street by a local activist named