nothing is for sure yet but id say he overdosed. i was listening to Loveline with Dr. Drew on 107.7 the end the night of the death of Mike starr and dr drew said he talked to mike recently before his death and mike was complaining of back pains and dr drew warned him not to go to the dr because they will just give him pain killers and not long after dr drew said that mike was found dead so im guessing he went off and got himself some pain killers and killed his pain. RIP MIKE STARR U ROCKED IT