The clerk was supposed to channel Kreskin, Uri Geller, and Nostradamus that two masked men who invaded the store, invaded his personal space will then just leave in s couple of seconds during the vautl. I'm glad the moderators have such psychic abilities.
Next, no weapons were apparent. Well, fans - yesterday this fat old, nice looklng man went to the store. He wore cargo shorts, a t-shirt (Support Ukraine!) and a Bass Pro floppy shirt over that. Under this was a Glock, extra mag, pepper spray and two Delicas. All invisible. Easily deployed in seconds. Maybe the Delicas could be used to slice tendons as the fat old guy learned in class. Recall, a case I've mentioned where an old man facing a young man had a paring knife in his pocket, not apparent, pulled it, stuck it in the chest of the young man who dropped stone cold dead.
As far as the hindsight AOJ analysis, go read the defense of Bernhard Goetz - the defense took apart the similar pro prosection claims made here. The clerk might have had an escape route, maybe not. The idea that a criminal case against him is a guarantee is just baloney.