SYLVESTER Stallone is ‘devastated’ and ‘grief-stricken’ after his son Sage was found dead on Saturday.Fresh reports say prescription pills were found at the scene of the 36-year-old’s Los Angles apartment where he was discovered.The filmmaker is understood to have overdosed on pills and coroner’s officials are investigating if it was accidental or suicide, according to TMZ. A source told RadarOnline that medics arrived on the scene at 3.05pm this afternoon and spent around 25 minutes trying to revive Sage before his death was pronounced at the scene.His body was taken straight to the coroner’s office - and the insider claims no suicide not was found. ‘I suspect he had been dead for quite a while when he was discovered,’ the source told the website. ‘Usually medics will be at the scene for around forty-five minutes but they were out of there within half an hour. There were a number of prescription bottles found at the scene but it did not appear to be suicide and no note was found.’A 9-1-1 call  was placed shortly before 3pm and the caller said Sage wasn’t breathing and indicated it could be a drug overdose, Radar reports. An autopsy is scheduled to take place in the next 48 hours.Shortly after news of Sage’s death, a spokesman released a statement on behalf of his action hero father, 66, who was at the Comic Con film convention in San Diego yesterday.‘Sylvester Stallone is devastated and grief-stricken over the sudden loss of his son,’ the actor’s spokesperson Michelle Bega said in the statement. His compassion and thoughts are with Sage’s mother, Sasha. He was a very talented and wonderful young man. His loss will be felt forever.’ Police said they found the younger Stallone in the home while responding to a ‘welfare check’, however Sages’ lawyer George Braunstein said he was found by a housekeeper. Friends and acquaintances had become concerned because they hadn’t heard from Sage in the past day.Braunstein said the death came as a shock, telling the New York Post this afternoon: ‘He was in good spirits, and working on all kinds of projects. ‘He was planning on getting married. I am just devastated. He was an extremely wonderful, loving guy.                             –DM