yeah, ok, let's get past all that. you have to agree that if a heroin addict had come into your life, the life of an unstable mentally ill person, that you would have both been worse off.
I'm just stating the obvious: if you're willing to honest and objective, it's good that he died. he stopped hurting his family. he stopped hurting himself. he was obviously in pain, that's why he was a junkie in the first place. And this avoided your involvement other than as an arm's length amusement.
you're a very lucky person. isn't it a relief that he's gone?