Welcome!
((((HUGS)))) first. I'm guessing your son is a bit older since you think he may find this site. It's partly why we each only disclose what we are comfortable with and keep basic information, like names and specific locations 'secret'.
Can you help out with a few answers though? This will help us help you.
How old is he? When did you start suspecting there were problems? What's MP?
I understand your concerns about him finding his story, but is he REALLY that interested in his own behavior that he'd go searching for his own answers on the internet? Honestly? I my child were that interested, I'd be overjoyed. Or is your concern a manifestation of his symptoms - paranoia?
Welcome again! You've found a great place for support guidance and insights. I hope you can get comfortable enough to share a bit so we can better help you out. If not, know that you are welcome to read, read, read, and garner advice from previous posts. Just know that
You now have us!