People News Sylvester Stallone's son Sage died from heart disease 08/31/2012 Sylvester Stallone's 36-year-old son, Sage, died of heart disease, the Los Angeles County coroner announced. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Sylvester Stallone
