“Tarzan” star Ron Ely’s cause of death has been revealed. The actor, who passed away on Sept. 29, died from “end-stage heart disease,” according to his death certificate, obtained by TMZ.

Ron Ely, best known for starring in the Tarzan television series, has died. He was 86. Ron's daughter, Kirsten Ely, confirmed the sad news in an Instagram post on Wednesday, Oct. 23.