i don't know if he will have criminal charges but he is sure to face a wrongful death lawsuit and lose whatever assets he has and whatever he makes forever.
Yesterday, Brian Herrera put out his latest video - using the fist-gun from Inglorious Basterds. It's a REAL thing. Stupid idea, but quite real. The thing him and the henchmen realized QUICKLY is how easy it is to sweep just about everyone. I mean, you need your arm facing directly down or directly up at pretty much all times. You're like the constable in Young Frankenstein. LOL
So be careful who you sweep with your muzzle. And UNLOAD YOUR FREAKING GUN. And USE A FREAKING SAFETY. (Better to belt-and-suspender the whole thing than just trust that Gary won't have a once-in-a-lifetime brainfart and sweep someone.)