The most common type of schizophrenia is paranoid type, so that prolly explains the weapons. Sooner or later this guy is going to decompensate and you do not want to be around when he does. He just might get it in his head that you or your roomie or both of you are the enemy. Unfortunately they emptied out the hospitals long ago due to the misbegotten notion that severely mentally ill people did not need to be in there and that they could be given what services they need in the community. It has not worked. The community does not care. Funding keeps being cut. Nobody cares about what happens to people such as your roomie-from-hell, as they see it as something that doesn't impact upon them. That is until some agency wants to open up a residence in their neighborhood, then they get all NIMBY. They don't care if it gets opened up at all, so long as it doesn't get opened in their community.
Most schizophrenics are not violent, just scared as hell most of the time. But they deal with their paranoia mostly by keeping to themselves as much as possible. When receiving treatment they can manage well enough. This guy's problem is that he is not receiving treatment, and is not interested in so doing. Legally, your hands are tied as to making him get any treatment. You can try talking to him, but that is not likely to change his mind, it would be more likely that it would push his paranoia buttons. Is there any way that you can contact his family? Even if you could I would doubt that it will have much efficacy. They've probably given up on him by now, you said that he's 41 years of age and it does not appear from what you've said that they take much, if any, interest in his life. You can't make anyone receive treatment if they don't want it. The only exception to that is if they are a danger to themself or others. I can only see a solution if you can get some cooperation from the landlord if you can get them to evict him, but that could get messy and cause him to decompensate. Where that to happen, someone might get hurt.
I know none of this is what you want to hear, but legally, that is as much his home as yours. Forcing him to leave is not going to be easy. Perhaps you could contact the office of your local tenant rights association, or you city council member (or alderman or whatever the title is in your locality) and get a good feel for who has what rights in your town. Wish I could have been more help.
Most schizophrenics are not violent, just scared as hell most of the time. But they deal with their paranoia mostly by keeping to themselves as much as possible. When receiving treatment they can manage well enough. This guy's problem is that he is not receiving treatment, and is not interested in so doing. Legally, your hands are tied as to making him get any treatment. You can try talking to him, but that is not likely to change his mind, it would be more likely that it would push his paranoia buttons. Is there any way that you can contact his family? Even if you could I would doubt that it will have much efficacy. They've probably given up on him by now, you said that he's 41 years of age and it does not appear from what you've said that they take much, if any, interest in his life. You can't make anyone receive treatment if they don't want it. The only exception to that is if they are a danger to themself or others. I can only see a solution if you can get some cooperation from the landlord if you can get them to evict him, but that could get messy and cause him to decompensate. Where that to happen, someone might get hurt.
I know none of this is what you want to hear, but legally, that is as much his home as yours. Forcing him to leave is not going to be easy. Perhaps you could contact the office of your local tenant rights association, or you city council member (or alderman or whatever the title is in your locality) and get a good feel for who has what rights in your town. Wish I could have been more help.
“To terrify children with the image of hell, to consider women an inferior creation—is that good for the world?”
― Christopher Hitchens
"That fear first created the gods is perhaps as true as anything so brief could be on so great a subject". - George Santayana
"If this is the best God can do, I'm not impressed". - George Carlin
― Christopher Hitchens
"That fear first created the gods is perhaps as true as anything so brief could be on so great a subject". - George Santayana
"If this is the best God can do, I'm not impressed". - George Carlin