We live in an apartment unit, and my neighbor across the hall from us is starting to scare me lately. The guy is about 26 years old and he's a drill sergeant for the army. He has been to Iraq twice within the last few years. He is really softspoken and passive acting most of the time, you wouldnt think he'd be a drill sergeant. Anyways, we've hung out before a few times and he used to come over and visit every now and then. He's a decent guy, just quiet. Well, just over a year ago he met this girl on base and they started dating. They ended up getting engaged and he moved out and in a condo with her. For some reason or another, things didnt work out between them, so he moved back into the same vacant apartment unit across from us again. This guy isnt the same guy, I mean he doesnt even act human. I've tried to talk to him on several occasions but it's almost like having a conversation with myself. It's to the point where his facial expression never changes, sometimes you say hello and he doesnt respond, he's like a mute. I tried taking him out to a bar one night about a month ago and we were there for 10 minutes and he's like "take me home, I feel sick" in the car ride home I told him about his behavior I've observed and how he has me worried. I'm not exactly sure what this dudes background is, but I know his mother had skitzofrenia and killed herself, and he was raised by his Aunt and Uncle. I believe he may be getting schitzofrenia himself. Maybe paranoid schitzo. He's seeing a councelor about everything(he tells my wife things he wont tell me) but I know it's starting to effect his job performance and they're talking about demoting him or something. My wife even said it herself "He's a prime canditate for suicide" I really think the guy is going to off himself, I've never seen anybody act this depressed and out of character before. The problem is I've tried and tried to talk to the guy, to get him to laugh, to invite him over. He wants isolation, he doesnt want anything to do with people at all. And ya know, I dont want things in my life to come to a hault just because I feel bad for him and he's ****d in the head. I have a family of my own and my own life to take care of. I dont think there is much I can do, I've tried and tried, I cant even get the guy to speak when I see him, its very uncomfortable. I dont know if it's safe for my wife or daughter to be around him, I dont know enough about people like this. Anyways, thankx for reading