More stars of "The Cosby Show" are mourning the sudden death of Malcolm-Jamal Warner, who played Theo Huxtable on the iconic sitcom.

Keshia Knight Pulliam just dropped a tearjerker tribute to her "Cosby Show" costar Malcolm-Jamal Warner. In a Sunday night IG post, Keshia shared a haunting clip of Malcolm-Jamal jamming on bass at Atlanta’s City Winery -- and her caption cut deep: "A week ago I lost my big brother,

Malcolm-Jamal Warner, who starred as Theo Huxtable on the beloved sitcom The Cosby Show, died tragically while on a family vacation in Costa Rica. Warner drowned after being caught in a high current and asphyxiating, Costa Rican authorities told ABC News. Now, what may be the final photo of Warner has emerged.