The Death of Bob Marley Mystery

Bob Marley was a famous musician that brought reggae and Rastafarianism into the mainstream. He was a social justice leader that had the power to influence and enact change in the people through his message and music. But, Bob Marley died at a young age from melanoma. There have been assassination attempts on his life when he was alive and it was believed that the CIA was after Marley because of the power he had over the masses. Was his cancer a successful assassination attempt or was it something else?