Organizer of an Illinois chapter of the Black Panther Party, who fought to protect African-American neighborhoods from police brutality during the 1960's.
He was good at drawing portraits of people.
He was involved in the National Association for the Advancement of Colored People and was assassinated in Chicago during a police raid.
He was the son of Elder William Clark and Fannie Bardley Clark.
He and Eldridge Cleaver were both members of the Black Panther Party.