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.
Real life isn't a video game. Handguns are very difficult to shoot accurately, and you are more likely to hit some random person by accident with them. They are also a lot less immediately lethal, and so you need to shoot a lot more to be sure you brought down the target.
That's why you use a shotgun indoors for police work if you aren't a psychopath.
Shotgun would probably make sense, yeah