Sage Stallone, the son of actor Sylvester Stallone, died from a heart attack on July 13, and on Thursday a county coroner refuted claims of drug abuse. According to him, Stallone suffered from atherosclerosis, which caused the heart attack that killed him. "There were no signs of an overdose," Lt. Fred Corral of the coroner's investigative division said. "It was a natural death."
