Like, there were no reports about the suspect having a gun, the pig says "let me take point with the rifle", as if a normal handgun somehow wouldn't be enough. Then he just starts shooting IMMEDIATELLY when he sees the guy, doesn't confirm that it is indeed the suspect. The pig shoots him multiple times, then the pigs starts screaming at the dying man to "turn around". The guy they shot could be acting in self-defense, we don't know. The pig just wanted to shoot someone, he couldn't shoot the person already on the ground and bleeding, so he shot the first person he saw standing.
Link and summary of video with timestamped CWs