> Instructed by whom? By instructors. As in those who advise or train people to use firearms. Here are just two examples I found: http://www.secondcalldefens

> Instructed by whom? By instructors. As in those who advise or train people to use firearms. Here are just two examples I found: http://www.secondcalldefense.org/brandishing-and-warning-shots http://www.secondcalldefense.org/brandishing-and-warning-sho... Here is a reddit post discussion someone being surprised by this advice: https://www.reddit.com/r/CCW/comments/3e5jn6/my_cwp_instructor_told_our_class_to_shoot_to_kill/ https://www.reddit.com/r/CCW/comments/3e5jn6/my_cwp_instruct... > UK law very definitely requires you to stop shooting immediately once the danger is past - see R v Clegg. Pretty sure so does the US law. It comes to how determination of "danger is past" happens. There are two aspects there I can think of : 1) This idea that acting too calculating and methodical, shooting one round in the leg, waiting, seeing them crawl and reach for their firearm, shooting another round, etc might not play well in court as the jury might look at it and say "hmm, he had time sit around and think and observe, why didn't he run to save his life at that point" it becomes dubious that this was self defense it starts to look like attempted murder there. While something like "life was in danger, reacted quickly, shot all the rounds, etc". Not saying one way is right or wrong it is just juries I think are inclined to acquit in the later case. 2) There is probably the same perverse idea as the Chinese drivers backing up and making sure they really crush that victim well enough for them to die, because then a dead person they can't sue in a civil court.