In 1963 civil rights leader was killed for helping African Americans register to vote in Mississippi.

Medgar Evers was a civil rights leader who worked to help African Americans register to vote in Mississippi. He was assassinated in 1963, making Medgar Evers the correct choice. James Meredith was a civil rights activist but was not killed in 1963, and Martin Luther King Jr. was assassinated in 1968.

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