FILE - An undated portrait shows Emmett Till, a black 14-year-old Chicago boy, who was brutally murdered near Money, Mississippi, Aug. 31, 1955, after witnesses said he whistled at a white woman. The Emmett Till Interpretive Center, in glendora, Miss., dedicated to the memory Emmett Till, has raised over $20,000 to replace a bullet-riddled sign commemorating the 1955 Mississippi killing that helped propel the civil rights movement. (AP Photo/File)