Law enforcement sources said Wednesday it's unknown whether the pills played any role in Stallone's death but said the amount of pill bottles found at Stallone's Studio City home was enough to warrant investigation. Some of the containers were empty, the sources said. it's unclear to whom the pills were prescribed.
An autopsy was performed on the 36-year-old on Sunday but no details have been released about its findings. The Los Angeles County coroner's office is now awaiting results of toxicology tests, which is common in such cases.
The Los Angeles Police Department is helping in the probe, but officials have said there is no evidence of foul play.
Sage Stallone's attorney said his death came as a total shock.
"Sage didn't even drink," George Braunstein told People magazine in an interview. "There has been no indication that there was anything wrong in his life."
According to the Los Angeles Times' Ministry of Gossip, Sylvester Stallone urged the public to "respect my talented son's memory and feel compassion for his loving mother, Sasha."
On his website, Sylvester Stallone added: "Sage was a very talented and wonderful young man. His loss "will be felt forever."
The Los Angeles Police Department's North Hollywood Division responded to Sage Stallone's residence, where he was found dead, but the case was reassigned to the robbery-homicide division. The division often handles cases that are high profile or demand resources not available to divisional detectives.
A housekeeper found the body of Sage Stallone, according to Braunstein.
Born May 5, 1976, in Los Angeles, Sage Moonblood Stallone was the first son of Stallone and actress Sasha Czack. He began his acting career in "Rocky V," the 1990 installment of the "Rocky" movie franchise. As a 14-year-old, he played Rocky Balboa Jr., son of his father's Rocky Balboa character.
Young Stallone again appeared with his father in "Daylight" in 1996 and had roles in nine other movies and short films. His most recent appearance was in a 2011 television documentary on the "Rocky" films.
In addition to acting, Stallone was a co-founder with film editor Bob Murawski of Grindhouse Releasing, which specializes in the theatrical and video release of restored B movies from the 1970s and '80s. The company's catalog includes "An American Hippie in Israel," "I Drink Your Blood" and "Cannibal Holocaust." Its latest release was 2010's "Gone With the Pope."
Officials also probed prescription drugs in the death of Whitney Houston and Michael Jackson.
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