Hello my little licking friend :3 don't worry about it. You just need better friends lol, this guys sounds like those emo self harm tards that act like that for attention. I had a friend that killed himself, he never told any one he was planing it. Any one telling other people just want attention and people telling them not to do it. Fuck him and his stupid shit :3
Holy crap, so much friggin bad advice here. In this situation it's best to tell someone in authority. Worst comes to worst, he'll get institutionalized for a little while, he may hate you for it, but time heals wounds like you wouldn't imagine, and hopefully one day he will be thanking you.
Oh, well I just read the met him online part.... That complicates things, heck, maybe talking to a policeman or something could help. They might be able to trace the message and take preventative action.
3 hours? Really? Your friend probably just had some other stuff they needed to get done in the real world. Don't worry. Also, keep in mind that we don't have the power to make someone take their life. If your friend wants to do it, then that's their choice, and you have nothing to say about it.
You can encourage them not to, but the choice is ultimately theirs.
If you'd like to talk about your suicidal feelings with someone, send me a note (I'm a good listener).
Maybe he's just being a bit emo and wants you to think he's dead. I've known people that have done the same thing. And just because you were talking to him doesn't mean you encouraged him, unless you actually kept telling him to die, then you're as stupid as he probably is.