I can shed light on this actually. I am loss prevention at a Wal-mart.
Rules are simple, we get no hand cuffs, no zipties, other words, no means of restraining. Some dude a year ago or less had a 13 year old girl handcuffed because she was a scratcher, she spit on him, he lost it, threw her against the wall......=end of handcuffs.
Another store, Loss prevention officer and his boss, got into a fight with two people that were robbing walmarts across the country and injured three people and caused about 10k in damages, (broke a soda machine when they dropped it on the guy) was a pretty cool fight to watch though.....= no more physical contact.
We are supposed to kindly redirect or let people go but mostly are there as a deterent for people not to steal. For those that posted and think that we are only supposed to go after lame ducks.....the week before I left I got into a fight with a crack head, I never hit him only detained and he was arrested for assault and unarmed robbery. 15y in prison. Some stores depending on the circumstances will allow certain things to take place. In my case it was straight up self defense cause he swung at me when I approached him.
I admit that I walk a fine line between getting fired and doing my job and I think what saves me everyday is the local sheriff's office praising me to my boss with the detail i provide with cases. I havent lost one yet with the DA.
We are so restricted on what we are and are not allowed to do but truth comes down to it that thousands walk out that door everyday and most stores are only working with one person walking the floor.
I am not proud of my job at times because I have had to call social services once or twice because it is a felony to involve your child while shoplifting(and you wouldnt believe how many people do this).
Bottom line is with this guy, I would have had the cops on my phone and followed closely only doing what I needed to to prevent injury. I am writing this before reading the articlle but if the guy was just armed and was going to shop then he is not in violation of anything. If he is carrying a gun and looked like he was going to use it.....There is little I could do anyways.