Unless there were other older cartridge casings laying around, a cursory inspection should have found at least one or two. It would at least confirm where the land owner was when we fired.
As far a cop-hater/cop-lovers, I think the main problem is that people jump to conclusions based on slim evidence and don't seem to care. Over and over again on this site, we have seen that the initial news reports are almost always wrong or only half-true. You would think it would make people a bit gun shy. Opinions are great, but make sure they fit what few facts are available. I don't mind debate, but try not to be outlandish just to stir people up. I think some posters just enjoy seeing the responses.
Based on the new information, I don't see anything new that would cause me to think the shooter is guilty of anything but self defense on his own property. Whatever the conditioned response of the officer was, he was not in uniform, he was trespassing armed, and he had no right to be where he was. He seems to also be involved in burglury for breaking into the guy's shed.
Personnally, if I was waiting for an officer to show up, I think I might have continued to wait after hearing shots. However, he didn't go walking through the woods, just went back to his shed. I might have done that just to confirm which direction the shots came from.
Purely my opinion and assumptions: I think these guys had something agianst his cats and were more or less hunting them. Sad that it had to turn out that way, but I can't see anything wrong with what the land owner did. I agree that it should never have made it to trial.