It was one of the most brutal tragedies of the civil rights movement, one that drew international attention to the inhumaneness of the American South.
Three young civil rights workers, Michael Schwerner, Andrew Goodman and James Chaney, were killed on June 21, 1964, by members of the Ku Klux Klan while working to register Black voters in Mississippi.
Schwerner and Goodman, who were both white, traveled with Chaney, who was African-American, on a trip passing through Philadelphia, Mississippi.
Since their killings, the three civil rights workers have been widely viewed as prominent figures of the movement.
Their deaths continue to serve as a vivid symbol of the fight for voting and human rights to African-Americans in the South.
