** FILE ** C.T. Vivian, integration leader, left, leads a prayer on the courthouse steps in Selma, Ala. on Feb. 5, 1965, after Sheriff James Clark, background with helmet, stopped him at the door with a court order. Vivian led hundreds of demonstrators armed with petitions asking longer voter registration hours. Clark arrested them when they refused to disperse. Six months before his death in June 2007, Clark, whose violent clashes with civil rights activists in Selma angered a nation, gave a statement defending a former state trooper accused of committing murder during a 1965 protest. (AP Photo/Horace Cort)