Actor and Grammy Award winner Malcolm-Jamal Warner, best known for his role as the sweet teenager Theo Huxtable on The Cosby Show , has died at age 54.

Per The Associated Press, Costa Rica’s Judicial Investigation Department confirmed that Warner died on Sunday in a drowning accident while on vacation with his family at a beach along the country’s Caribbean coast. He was pulled into a current. Fellow beachgoers tried to rescue him, but first responders from Costa Rica’s Red Cross were unable to revive him.

TV audiences initially came to know Warner as the only son of Heathcliff and Clair Huxtable, a role he played on the smash hit comedy The Cosby Show between 1984 and 1992 and for which he earned an Emmy Award nomination. Later, he appeared on the sitcoms Malcolm & Eddie and Reed

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