Which NAACP official praised armed self-defense in his memoir Negroes with Guns and broadcast his militant message on his Radio Free Dixie radio show from exile in Cuba?

Robert F Williams

Explanation:

He was born in Monroe, North Carolina. He was elected as the local branch president of the NAACP. He was the father of the Black Power movement and civil rights leader who openly advocated armed self-defense for blacks in the 1960s. He inspired the Student National Coordinating Committee, The Revolutionary Action, and The Black Panther Party.