Why do people think this was a professional anyway? It was obviously pretty meticulous but I don't think hitmen even allow the possibility of their guns jamming twice during the hit. He got the job done, sure, but if he was a 'professional professional' wouldn't he have had some kind of super badass custom worked piece done for him that was reliable but still easy to throw away? It's plausible he got scammed or something in that scenario, but I dunno, he really looks like a lucky goober to me in the video.
In any case, God Bless America and this goober.