Youtube of CCW defender
Here's the security cam video. Nice soundtrack, too. Looks like the robber enters, goes to counter at extreme right, one motel clerk begins emptying the till for him. The guy on the laptop at left gets up, casually wanders over to help her, then draws and fires. The guy drops right outside the door. BTW, the comments say the camera angle is deceptive -- the lady with the kid wasn't actually standing right next to the armed robber while he was doing his thing, nor in the line of fire.
The CCW holder looks to have been a cool hand, up until he drew you'd swear he was just helping make sure the robber got his money -- reportedly, three shots and three hits.
[Update: the camera angle and setting may be deceiving, as has been reported -- the lady with the child may have been out of the way. As a pure legal-type, there might be some question around shooting him in the back. I'd hope that the police are like those around here, inclined to say "good shooting" rather than "let's ask for a legal opinion." And inclined to understand that once a gun battle begins, it doesn't stop because the other guy turns away. We can put all sorts of legal constructs on that -- "well, he could still have turned and resumed the fight" -- but the bottom line is that once a person begins a fight for his life at close range, it's too much to expect that in a tenth of a second they will judge "hey, he's turning way, I should cease fire under sundry provisions of state law." As the pragmatic judge Oliver Wendell Holmes observed, it is too much to expect distinterested contemplation in the presence of an uplifted knife (paraphrase, I forget his exact wording).]