I understand you are angry at the footage, and you want to believe that the ICE agent is ontologically evil, and he executed a guy for no reason at all out of the blue, but it's probably more likely that he panicked at something in the moment. That doesn't make it acceptable, but we should try to understand the truth of events even if we are mad.
Obviously someone panicked. We can clearly see they did not line them up and actually shoot them with a firing squad.
But what is the point of this thought exercise? Where does it lead? To more “training” for the agents?
The whole thing is illegitimate and immoral. There is no need to engage with what was going on in the guy’s head. We are way, way too far past that point.
It's not an excuse, it's an explanation. By all means throw the book at him for murder or whatever. I think it's important because understanding why things happen is important to stop them from happening. If you just stop at "they're evil murderers" then your options for fixing that are very limited.
> But what is the point of this thought exercise? Where does it lead? To more “training” for the agents?
Yes, at the very least.
So far, it appears that the killer will not be investigated, much less prosecuted. This is how you start civil wars.
[1] https://news.ycombinator.com/item?id=46559763
This does appear to be the case, same with Good