FILE - This Sept. 22, 1963, file photo shows the crowd, gathered in Lafayette Park near the White House in Washington, for memorial services for the four young black girls, killed the week before in the Sept. 15, 1963, bombing of a Birmingham, Ala., church. As the burgeoning civil rights movement gathered force in the 1960s, demonstrators were brutalized and killed, sometimes at the hands of law officers. Many slayings remain unsolved. But in some cases where local authorities failed to go after the attackers or all-white juries refused to convict, the federal government moved in with civil rights charges. (AP Photo/Byron Rollins, File)