[absolootezer0]

What training does Dollar General give her? Did she follow it? Does it account for innocent bystanders? Does it account for CHLs?

don't know about dollar general, but having worked in restaurants for almost 20 years, i have been taught by several managers the same two things.
first, try to comply. give them the money, it's not worth your life.
second: if they try to move you to an office, storeroom, walk-in cooler, or any small, lockable room, go ape s*** on them, because they're about to kill you.

[sam_paine]

go ape s*** on them, because they're about to kill you.

Could very likely have been what happened.