[quote=@Inkarnate]
<Snipped quote by Dervish>
It’s a complicated answer. In short, this is my best friend who has been a functional (albeit anxiety-prone) guy who needs to get the mental health help he needs. He had no signs of aggressive or psychopathic behavior prior to this and I suspect a lot of this was brought on by a psychosis we didn’t know about in combination with being in a unhealthy relationship that triggered his dependence issues as well as his apparent problems with envy, paranoia, and jealousy. He’s a good guy, but he’s burned his last olive branch and now he needs to take long life lessons going forward. Unfortunately, what this means is I can no longer be his landlord/roommate. As a friend and homeowner I am in two dire straits—the friend and the landlord. Given his issues with depression and such I fear for his life and well-being. I feel like I’m stuck in a Kobayashi Maru.
[/quote]

I'm sorry to hear that, but I think you're going about it the right way. Your friend does need help and you can't let his behaviour drag you down with him, so hopefully this is the wake up call he needs, and maybe being in custody will put him in the way of a councilor. I had a friend who was incredibly self-destructive with his alcoholism and nothing myself or my friends did to help stuck, I realized it was something he had to do on his own and I couldn't deal with his behaviour past the point it got to. Best of luck, man.