Malcolm-Jamal Warner, who played Theo Huxtable on "The Cosby Show," has died at 54, with Bill Cosby reflecting on their relationship and Warner's professionalism on set.

Bill Cosby shares intimate memories of Malcolm-Jamal Warner following "The Cosby Show" star's tragic drowning in Costa Rica.

Following the tragic death of Malcolm-Jamal Warner, Bill Cosby pays tribute and speaking about their bond on and off 'The Cosby Show.'