Deezer D, a rapper, motivational speaker and actor best known for his role on NBC's ER, died on Thursday (Jan. 7). He was 55 years old.
According to TMZ, his brother Marshawn believes the star (born Dearon Thompson) died of a heart attack, though no official cause of death has been revealed. Thompson had undergone a major heart surgery in 2009.
Deezer D appeared on almost 200 episodes of ER from 1994 through 2009 as nurse Malik McGrath. In 2008, he tapped into his rap talents and released a full length album titled Delayed, But Not Denied.