I don't think he understands that even though he was acquitted, the society will not accept some clown talking into a situation with a weapon, kill some other idiot with a weapon, as proper way to conduct yourself.
In fact, what I learned is that if you see armed idiots, civilians or government, you best to avoid that location and idiots because anything can happen and legal system is not your side.
Yeah you have a right to carry, I have the right to run the other way.
Even taken in good faith, what value is a university supposed to get out of a lecture from some loser kid who's only accolades come from a controversial trial?
What could he possibly have to say of any significance or importance?