Complex sentence: In the former, two BLM protestors admit that other BLM protestors had first assaulted, struck, and run after the visitors; eventually at least one of the visitors turned around and fired a gun, apparently in self-defense.
Split into simpler sentences: In the former, two BLM protesters admit that other protesters had first assaulted, struck, and run after the visitors. Eventually, at least one of the visitors turned around and fired a gun, apparently in self-defense.