The criminals were acting in self defence

In the "shotgun Ed" scene, the criminals were acting in self defense, and were murdered. Just watch the scene very carefully and think about it very logically. Sorry, but I only remember Exley's name. The second cop straight up murdered the first criminal. He had his hands up while he was shot. So since the second cop murdered the first criminal, the second criminal shot him in self defense. Self defense also constitutes the defense of another person. Then Exley shot the second criminal. Since he shot him while he was acting in self defense, that means Exley murdered him. Then the third criminal tried to shoot Exley, but Exley shot him first. Since Exley murdered the second criminal, that means the third criminal tried to shoot him in self defense. Again, since Exley shot him while he was acting in self defense, that means he murdered him. Shooting the fourth criminal while he ran was also murder. It's usually legal to shoot a fleeing felon if they pose a severe threat to society, but in this case, since all his friends were just murdered right in front of him, running was a non-violent form of self defense, so Exley once again shot him while he was acting in self defense, which means he murdered him.