Good for him, good for the other customer(s) because of him.
I’m curious 
about what it takes to make a decision. That it doesn’t leave you in fear for x amount of time whether you get prosecuted or not.
@Jerzees, I can think of one word. “Training.”
That’s right @David237 . As the clerk told:
“The moment he pointed the gun at me, it was pretty obvious what he was there for”
He knew what to do.
Few days ago we discussed similar scenario, when gas station clerk put some rounds and didn’t even harm the assailant. He was also prepared… but not the way we thought. 
Yeah, what a contrast. We see the obvious difference that training makes. This store clerk was confident in his training which I will guess included other than just situational awareness but knowledge of his states’ law, the Legal Use of Force to include Deadly Force, proper mindset, skills development, and the ability to compose himself, and handle the situation righteously. Survival and empathy is a huge motivator also, and with all of the other factors in play at the same time. Unlike the obviously untrained clerk that we viewed before that was just…“well, what is to be expected when there’s no training.” IMO.
@David237 
Happy Birthday
AND USCCA Protection,is really a must as far as I am concerned
He stopped shooting when the threat was stopped, and called 911.