What makes martin luther king a hero of faith ?

Martin Luther King came from a religious Christianity background. He was the hero of faith for taking a stand against unequal rights for black people
As a follower of Christ, he was determined to make equal rights for blacks.
He had even traveled to the South for the sake of saving his family against the war-whites vs blacks
That was how he had a strong faith-to be killed for the save of his own family.
Hope that answers your question:)