Charges won't stick as this was clear self defense. In both videos he is clearly attempting to retreat and only fires once he has to.
Imagine if the roles were reversed though. Black guy gets chased by a white mob of Trump supporters. He fires in self defense, lauded as a hero by the media. You damn well know that is how it would go down.
Minus the part where he did this with a gun he didn't have the right to wield and that he transported illegally across state lines.