Final answer:
During the Civil Rights Movement, multiple civil rights workers were murdered. Medgar Evers was killed by a white supremacist, and three workers were beaten and killed by Klansmen with the support of local police.
Step-by-step explanation:
The murder of civil rights workers refers to multiple incidents during the Civil Rights Movement in the United States. One prominent example is the murder of Medgar Evers, a civil rights activist in Mississippi. Evers was shot and killed by Byron de la Beckwith, a white supremacist, in 1963. Another example is the murder of three civil rights workers, James Chaney, Andrew Goodman, and Michael Schwerner, who were beaten and killed by Klansmen with the support of local police in Mississippi in 1964.