You are barking up the wrong tree with this silly nonsense. A training range is nothing like a real life situation with a model turning red and green to stop and start. You could very easily empty a pistol magazine by the time you have heard a stop command, this was not a training exercise and has no bearing in the field. There is no law against firing 3 or 4 rapid shots in succession in actual fact it is part of your weapons training. You do not fire one single shot and then hope to god you hit the target or made the kill. The training and I have actually done this too, is to fire 3 shots to the chest area to take someone down and not fire at the head which is too small a target to hit, the way the ICE agent took the shots was exactly this way, had he waited a few seconds between shots then yes there could be a case to answer.