Just because the cops were (presumably) on this guy's property, does that give the resident the right to shoot them in all circumstances? What if the resident came out, yelled at them and then started blazing away? It seems to me pretty clear that there aren't enough facts here to draw conclusions but that doesn't stop some people, obviously.
"What if."
What if the resident came out, yelled at them and then the undercover police started blazing away?
"What if's" don't work very well in arguing either side of this.
I do believe that if you do a little reading you will find that it is stated he told them to leave two or more times. And unless the tree one cop was hiding behind was in the street, it is a safe bet it was on the man's property.
No of course not. But in these circumstances he would have been perfectly justified.
What if the resident came out, yelled at them and then started blazing away?
What if a giant grasshopper from Mars came and started killing everyone in sight?
(As long as we're makin' sh!t up might as well make it interesting.)