The Cosby Show alumna Keisha Knight Pulliam has paid a heartfelt tribute to her former The Cosby Show co-star Malcolm-Jamal Warner. In an Instagram post Sunday, Knight Pulliam wrote “A week ago I lost my big brother,

Keisha 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.

Keshia Knight Pulliam is remembering her late “Cosby Show” co-star Malcolm-Jamal Warner, calling him her “big brother” in a heartfelt Instagram tribute.