Malcolm-Jamal Warner's cause of death has been released by police. The actor, who is best known for his role as Theo Huxtable in the hit TV sitcom "The Cosby Show," died on Sunday off the coast of Costa Rica after a drowning, Costa Rican National Police told ABC News. He was 54.

The Cosby Show alum Malcolm-Jamal Warner’s cause of death has officially been revealed. The Costa Rican Judicial Investigation Agency (OIJ) confirmed that Warner's autopsy was completed on Tuesday, July 22.