So I don't normally make posts this long but this is a very long and complicated story so here goes...

First to explain the dynamics: My room mate and I live in a halfway house that's part of a program for people with MI. It''s sort of like a community of halfway houses, there's 2 houses for men and then another women's house except that one is supervised(that's where all the executive staff work). Then there's a day center that's part of the program that has classes, outings and that type of thing.

Anyway, there's a guy living in the men's house who my room mate very briefly dated. For awhile after they broke up they stayed friends. Then one day he casually told her that his friend (who used to attend the day program but was not part of housing) had nonconsensual sex with a girl, in his apartment, while she was drugged. My room mate told our housing director, who called the police. No charges could be filed because they couldn't prove anything. But when he (my room mate's ex) found out that she told on his friend he was pissed at her, saying she could have ruined his life. He got very angry almost to the point where he could've been violent. So this is someone who defends that type of behavior.

He is a very awkward guy who has never been able to keep a relationship and as a result is VERY angry with society, especially women. He has vented to my room mate about how much he hates seeing couples together and how he has thoughts of hurting them. He has also said that he is capable of shooting up a place and that he had homicidal thoughts towards a female staff member because she kept professional boundaries with him. My room mate didn't report any of this because She had no proof as most of the more damning conversations happened over the phone, so most likely nothing would be done (like in the other situation) and then if anyone said anything about it to him he would KNOW it was her and something might actually happen. She kept talking to him basically to keep him stable enough so that he wouldn't do anything.

So, last night he was ranting and raving to her again about how much he hates everyone and everything, hates women etc. and that he was feeling suicidal a few days ago but wasn't anymore, now he's just mad at the world. She finally was honest with him and told him he needs to take care of himself and stop expecting so much from other people. He got defensive and then she ended the conversation. Me and her were talking a little while ago and somehow the topic got to guns and shooters, and my room mate said "That's going to be _____ one day." And now we're both very worried he might do something. I'm especially concerned about the day program because they leave their doors unlocked and people just walk in and out. We've even had strangers wander in there before. Now I'm thinking I just don't want to go there anymore.

I feel like I should go to the housing director. But just like before, we don't have any proof besides a Facebook message about him being suicidal, but they probably wouldn't even hospitalize him because he's not actively feeling that way. My fear is just like her's was-if he finds out someone told, he's going to lose it and even worse will think it was her that told. I'm absolutely terrified he would do something to her or something like we said. Then part of me wonders if I'm jumping to conclusions, he said he has the capability, but would he? He's been in treatment, he's in treatment and it isn't going to change any of this. So what could they even do? What would stop him from doing something to hurt my room mate? It's not like they would lock him up forever, even if we had proof of the other things he said.

I'm really upset right now because I just don't know what to do...