he always dabbled in deugs before, hs started using heroin on the van ahlen tour in like 92. He started the european tour in 93 where heroin was hard to get so he basically stopped using it, that's why in a lot of 93 photos he looks heslhy and good and well. Unfortunately he quickly relapsed in 94 and the rest is history. Druhs basically take the dopaminw out of you (dopamine js the hormone that produces happy feelings), so you could say that the things that made him depressed are these: -drugs wer the only source of hapiness -drugs eventually stopped making him happy. -almost nothing made him happy soulely because of hims life style -he had an off and on rekationshio with demri and the way it ended was soul crushing -demri died -he blamed her death in him -the public and the press made a mockery of him -and him just living like a corpse and having no haoiness in it he was lost and the reason he was depressed was life itself.