On June 21, 1964, three civil rights workers - James Chaney, a Black Mississippian, and Andrew Goodman and Michael Schwerner, two white New Yorkers - were killed in Neshoba County, Mississippi. They were part of the Freedom Summer campaign, working to register Black voters and promote civil rights in the segregated South. The men disappeared after visiting a burned Black church and were later found murdered by members of the Ku Klux Klan with assistance from local law enforcement. Their deaths shocked the nation, drew global attention to racial violence in the U.S., and helped drive support for landmark civil rights legislation.