Sage Stallone death: Sylvester Stallone hires private investigator

Sylvester Stallone isn't ruling out foul play in the death of his oldest son, Sage Moonblood, though there's currently no evidence leading in that direction. According to TMZ, Sly has hired famed private investigator Scott Ross to find out what happened to his son.

The actor also wants to know whether Sage was using drugs or alcohol in the weeks leading up to his death. Authorities reportedly found "huge" empty hydrocodone (generic Vicodin) prescription bottles, "like the ones in pharmacies," in Sage's Los Angeles home, where he was found dead Friday (July 13). Although an autopsy was completed Sunday, it will take four to six weeks for results to be revealed.

TMZ also reports that authorities found baggies of white powder in the room where Sage died. One source suggests it could be cocaine or crushed Vicodin.