I actually sat through and watched it in full.
The dude is nuts and should be in a mental institution, but I lose most sympathy for him over the fact that he constantly sucker punches people. He does seem to have some level of trickery and manipulation, picking his targets deliberately, getting them to think it's "light sparring", then trying to take their heads off. Luckily he sucks and hasn't hurt anyone seriously, at least not yet.
Strangely this guy has a whole bunch of people on YouTube who upload all these videos to make fun of him. It probably deludes him into thinking he's an important boxer. I'd try to avoid this nutcase, I wouldn't be the least bit surprised if he went on a shooting spree.
He does show some nice accuracy and a good chin here: