Rudy Huxtable is saying goodbye to her big brother. “The Cosby Show” alum Keshia Knight Pulliam paid tribute to her former co-star Malcolm-Jamal Warner after his death at age 54 with a touching social media post on Sunday.

Conflicting accounts are surfacing in the aftermath of Malcolm-Jamal Warner’s tragic death in Costa Rica last week.

Keshia Knight Pulliam is honoring her former "The Cosby Show" co-star Malcolm-Jamal Warner after his tragic death. In a touching Instagram post on Sunday, Pulliam shared a clip of Warner performing onstage at the City Winery in Atlanta, followed by footage of two young girls, believed to be each of their daughters, walking with a horse on a farm.