Whoa! Quick draw mode!
This is the difference between a gun novice (robber), a gun user, and a gun expert (officer).
You can mentally parse this event by fractions of a second for physics and psychology as an absolute justification for concealed carry.
To start with just the tip of the iceberg, let me reference the gunfighter, physicist Neils Bohr:
http://news.bbc.co.uk/today/hi/today/newsid_8493000/8493203.stm
“New research from the University of Birmingham suggests the best strategy may actually be to wait for the other guy to make his move.
“In a series of “laboratory gunfights” - with pistols replaced by electronic pressure pads - researchers found that participants who reacted to their opponent’s movement were on average 21 milliseconds faster to the draw.
“Niels Bohr (1885-1962) liked to take time off from figuring out the structure of the universe by watching westerns. Bohr noticed that the man who drew first invariably got shot, and speculated that the intentional act of drawing and shooting was slower to execute than the action in response.
“Here was a hypothesis that could be tested, and with the aid of cap guns hastily purchased in a Copenhagen toyshop, duly proved it. In a series of mock gunfights with colleagues Bohr always drew second and always won.”
Now add to this that in a robbery, the *attention* of the robber is going in several directions. He has to pay attention to whoever he is robbing, what he is robbing, anyone else in the vicinity, his accomplice if he has one, if he sees or hears anything like an alarm, how he plans to get away, etc. And he has to “refresh” his attention of all these things frequently.
Critically, he wants to rob and get away, not to shoot. If he wanted to shoot, he would have shot immediately.
Compare this to anyone else in the store with CC. They need to pay attention to cover and concealment, once, then to their gun, just to ponder its state of function and how quickly they can bring it to bear, once. From that point on, they can put all their attention into the robber or robbers.
This gives them a huge number of milliseconds to act, unlike the robber who must *move* his attention to them, figure out what the CC holder is doing, and then do something or not, with a bias to not.
In this case, my guess is that the robber pointed his gun at the guard, then looked at something else. The guard drew his gun while making a slight sidestep and half sideways turn, to a new location and narrower profile, perhaps cocking his gun while raising it, if it was a revolver, or taking it off safe while raising it, if it was an automatic. At head height, briefly aimed and a “grab shot”, as a photographer would say.
How to win a gunfight. This is why I always prefer CC to open carry. Open carry is to change minds. CC is to put bullets through them.
It didn't occur to him that the script might have something to do with that?
While someone is taking out the open carry person, the one concealed has those few seconds to get the job done..