Keshia Knight Pulliam has made a promise to her late television brother, Malcolm-Jamal Warner. Knight Pulliam, who as a child star played Rudy Huxtable on “The Cosby Show,” posted a tribute to Warner on social media over the weekend.

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.

The Cosby Show cast will never forget working with Malcolm-Jamal Warner. From 1984 to 1992, Warner won over the hearts of viewers as he portrayed Theodore Huxtable on NBC’s iconic sitcom. But after news broke on July 21 that the actor had died in Costa Rica from a tragic drowning,