It was revealed that Sylvester Stallone's son Sage died at age 36 from natural causes due to a heart condition.
Sage Stallone's death on July 13th was attributed to a condition that causes blockage of the arteries, and no other factors were involved. It has been classified a natural death.
The actor and film director's sudden death stunned his family and friends.
Sylvester Stallone's publicist described him as "devastated and grief-stricken" and the actor skipped several promotional events for his film "The Expendables 2."