The 36-year-old actor and director was found dead in his Los Angeles-area apartment on Friday apparantly of a drug overdose, according to KABC-TV

Sage Stallone’s longtime attorney, George Braunstein, confirmed the news in a statement, saying "I’m devastated...he’s an extremely bright, creative person...full of life."  So far there is no public reaction from Sylvester Stallone to the news.

Sage Stallone is the child of Sylvester Stallone and his first wife, actress Sasha Czack, to whom he was married from 1974 to 1985.  He made his acting debut in 1990's Rocky V, playing Rocky Balboa's son.  He acted occasionally after that, and also wrote and directed short films.

Braunstein said funeral arrangements are being made.