[IChing]

Not too sharp. Try putting 2 and 2 together for the answer. Hint: Look in the most obvious place. Who is he?

You’ve never had training in the 21-foot rule, that’s plain.

Get acquainted with the fundamental difference in character between law enforcement officers, who have a “duty to act” — that is, to actively seek out, confront, apprehend, and overcome lawbreakers and threats, and that of security guards, which is moreover the duty to retreat/defend.

To the point, LEOs must sometimes aggressively act to confront/bring about a situation wherein deadly force winds up being necessary, even though it is the last resort to resolve the situation, whereas those doing guard/security duties are primarily required to hold to post limits, not seek out such situations beyond limited orders, and not pursue, etc., except in extraordinary circumstances.

[Salvavida]

The 21 ft rule isn't a rule, it is a guideline. You do not get to engage someone arbitrarily, skipping the continuum of force (conversation, non-lethals, etc) and blasting them when they are not presenting an immediate threat to your person or someone else.

All of your experience failed you, and that is the reason why the cop does the perp walk.

[dr_lew]

To the point, LEOs must sometimes aggressively act to confront/bring about a situation wherein deadly force winds up being necessary, even though it is the last resort to resolve the situation, whereas those doing guard/security duties are primarily required to hold to post limits, not seek out such situations beyond limited orders, and not pursue, etc., except in extraordinary circumstances.

Well, how many "resorts" are there, that this is the last of ? It seems to me there are two. The first is DROP YOUR WEAPON X N. This demand being made with weapon drawn and aimed. If the subject does not comply, lethal force is the second resort, applied at the discretion of the officer. It's all very simple to me.