DJ AM swallowed a handful of OxyContin pills and had another still in his mouth when he was found dead in his apartment on Aug. 28, a law enforcement source has alleged to PEOPLE.

According to the report, DJ AM -- real name Adam Goldstein -- had eight undigested OxyContin pills in his stomach, which suggests he downed them in quick succession. The source believes Goldstein "was going unconscious when he took the last one. He didn't even swallow it," adding to the theory that the celebrity deejay committed suicide.