What Onyxcougar said.
Also what Redux said.
I see it like this: the man has good reason to be suspicious of groups of strangers on his property due to the location of his property, past problems with trespassers, and the current violent instability across Mexico. I don't see anything wrong with what he did on his property as long as he wasn't physically abusive (beating, etc.) and immediately notified the authorities as to the situation and promptly turned the people over as they were found (all possessions, no harm done as said before, etc.). However, this is most certainly a slippery slope as evidenced by his misbehavior in this other event with a perfectly legal group of people and their actions. That article is so slanted you couldn't stand on it, but the fact remains he acted inappropriately in that situation on BLM land and should be punished for it. The man needs to learn the legal limits of dealing with these people and put that into practice. If he keeps up this overly aggressive behavior he's going to kill somebody who doesn't deserve it, and then the major shit-storm will kick up.