Murders of Chaney, Goodman, and Schwerner

On June 21, 1964, three civil rights movement activists, James Chaney, Andrew Goodman, and Michael Schwerner, were murdered in Neshoba County, Mississippi by local members of the White Knights of the Ku Klux Klan. Earlier the same day they were arrested for speeding, and after being released were followed by local law enforcement and others affiliated with the authorities, all of whom were associated with the Klan.

Source: Wikipedia — Murders of Chaney, Goodman, and Schwerner (CC BY-SA 4.0)