Its ok to get involved if you think its worth it. But you gotta be resonable. There are phone numbers you can call if you think someone is suicidal even if they are on the internet. Or you can even report it to the cops in her area. Let professionals and people who deal with these kind of things everyday handle it before you mess someone's life up more then it already is and are the cause of the suicide.
If you want to help someone, give them a list of resources. Usually starts with the suicide hotline number.
You aren't helping. You don't know this person- which you have just opened up for harassment. Leave them alone.
Seriously, if someone did this to me- that is, what you just did- I'd go out of my way to get them. Or at least be very angry and creeped out. That is stalker behavior.
Uh yeah, trying to almost-dox someone isn't the right way to go especially if you don't know them personally/haven't really tried to advise them at all.
The moment you post someone's personal info you're essentially putting them up for more harm than good. Shit like this doesn't fly. Get this thread deleted yo.