Hi. I have a veteran roommate that has been my friend since high school. Before he was in the war, he had some issues but after hes come back he's been a different person. He was carrying a handgun on him constantly and got into an incident where he took it out and started waving it at someone. That has started to progress into more and more reckless behavior. Now he has started partying with the younger crowd and doing a lot of drugs. I think he wants to die honestly, and is doing everything to make sure that happens. He has asked me if I wanted to go out and shoot someone, which I thought was a joke, but realized that he wasnt joking at all. THe house we live in has been turning into a nonstop party scene with drugs and alcohol. I honestly can't move out because I have financial issues, but i somewhat fear that we could get busted and I would be in the middle of this. He also has a medical issue which he could've gotten better with surgery but decided to say 'f it' and missed the surgical procedure. I honestly dont know what to do here. I mean I have been there for this guy quite a bit in the past helping him out, but I feel like thsi is reaching a boiling point and something messed up is close to happening. Could someone give me some advice? What should I do?