Playing a bit of devil's advocate here, looking at the possible other side of the story, whatever you want to call it:
Do you know that he was hunting your feeder as opposed to hunting a well traveled trail? In some places,
it's illegal to feed deer
It's not your place to 'keep him on his place'. It sounds like you've already solved what would be your business, keeping him off your place.
Have you considered that your eagerness to dispense an arse kicking would be seen as 'twitchy' to some people?
There could be some illegal activity that happened, but none of what you've mentioned tells us that. Did he actually shoot a deer and, if so, was it done illegally? how far from your house was he when he discharged his weapon and does that comply with your local laws? did he have permission to be on that land?
At the same time, if he's doing stupid/illegal stuff with a weapon in your neighborhood, it doesn't really matter whose land he is on when he does it. Bullets certainly don't pay any attention to property lines.
Keith