Prince had guests on a regular basis, he knew how to throw a party and I would be really surprised if he died from an overdose.
From the sound of it, Prince was abusing opiates. Might not have been an overdose. But like how Scott and Jeremy Brown died. It wasn't overdoses of any single drug, it was the combination of multiple things that killed them. The drugs, alcohol, weakened hearts from either or both genetics and past abuse.
I'm sure we'll all find out when the toxicology report is released.... Too young to die, either way.... We've lost a lot of legends in the past 6 months, seems like it all started with Scott.....