Uh, yes. I'm pretty damn certain that the Syrian rebels did not gas themselves. The OPCW just came out with a massive report on the matter this week. Which, unlike this dudes claim, was extremely well sourced.
I'm not even going to continue down this "argument from authority" path. Completely baffling conspiracy drivel
Either way, you should at least know who the man is if you want to maintain any pretext of knowing modern American history.