Kurt Cobain Conspiracy Theory

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I've been looking into the death of Kurt Cobain during some down time lately, and I just don't see any plausible way he committed suicide. For one, there was no gun powder on his hands. Two, and more significantly, Kurt had 3 times the normal mortality rate level of heroin in his bloodstream, so blowing himself away with a 12 gauge at that state would have been almost impossible

I think Courtney Love had him killed. They had that rocky relationship, and he was planning on leaving her. I believe his suicide note was initially written by him to be a retirement letter, as 3/4ths of the language reads the way he wrote and doesn't discuss suicide, but the music business and his unhappiness with the current state. The last part reads differently, and this is when his suicide and goodbye's to his family are included. Also, Courtney was found with a handwriting copying notepad, and the killer she may have hired who was about to confess, El Duce, was killed before he could get his story out.. Thoughts?