[Serious] Suicide threats?

[Rev. Rye]

So, I just found a new thread from a user that seems to basically be a suicide note, explaining his backstory and even his planned method for offing himself. I reported it (because, frankly, something like that shouldn't fly under the radar) and then I looked at the rules and found there was nothing in them about something like this. Threats against other forumites, yes, but suicide? I just want to know how to proceed from this.