The actor’s recent heart attack caused many to believe it was the main factor leading to the actor’s death, and today the coroner confirmed that Duncan died of natural causes.

Assistant Coroner Chief Ed Winter said Duncan’s personal physician signed off on the star’s death as natural and added that the coroner’s office found no reason to contradict that finding.

Duncan “never fully recovered” from his July 13 heart attack, his fiancée, reality-TV personality Omarosa Manigault-Stallworth‘s rep told E! News. “Manigault is grateful for all of your prayers and asks for privacy at this time.” 

The 6-foot-5-inch, 300-pound star earned himself an Oscar nomination for The Green Mile,and continued to grow his career with films like Daredevil, Talladega Nights: The Ballad of Ricky Bobby, the Tim Burton Planet of the Apes remake and Armageddon.