Malcolm X
Born Malcolm Little, X was undoubtedly one of the most gifted orators in modern American history. The purpose of inciting togetherness and focus was the point of civil rights speeches and Malcolm X nailed it.
He knew how to make enemies among the powerful. When he resigned from the Nation of Islam, he did not leave quietly but seized opportunities to bash his former organisation.
In 1965, Malcolm was killed by some members of the Nation of Islam who took issue with departure.