Provide evidence.
It's been pretty well established that he went to school there and isn't substantially older than the other students.
And look at the guy. If I really wanted to come up with an equally half-@ssed conspiracy theory that would be more believable, I'd say he was 14 or 15 and pretending to be older.
Just cause we don't like the guy doesn't mean every idiotic conspiracy theory about him has to be true.