Variety is reporting that Chadwick Boseman has died of colon cancer at the age of 43. Most recently he was best known for the role of Black Panther in the Marvel Cinematic Universe, however his earlier film roles including playing the first African-American Supreme Court Justice, Thurgood Marshall, and the first African-American man to break the color barrier and play in the MLB, Jackie Robinson, in bio-pics for both people (Marshall and 42, respectively).