Coroner's officials have determined that Sylvester Stallone's son Sage, who was found dead in his California home on July 13, had a heart condition.
Sage, 36, died from natural causes due to a heart condition that causes blockage of the arteries, coroner's officials said Thursday. No other factors were involved, reports AP. Toxicology results showed only a minimal amount of hydrocodone in his system.
Sage Moonblood Stallone was the oldest of Sylvester Stallone's children and co-starred with his father in two films. He also became involved in moviemaking, directing the 2006 short Vic, which screened at the Palm Springs Film Festival.
He made his acting debut in 1990's Rocky V and appeared with his father in 1996's "Daylight."