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In this Sunday, Jan. 31, 1972, photo, a man receives attention during the shooting incident in Londonderry, Northern Ireland, that became known as Bloody Sunday. An epic 12-year investigation into Northern Ireland's biggest mass killing by British soldiers reached a bittersweet climax on Tuesday, June 15, 2010, as relatives of the 13 Catholic demonstrators killed that day began reading a 5,000-page report into why the 1972 slaughter happened. (AP Photo/ PA/File)

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