How can he prove he was NOT hunting?

I think the evidence is stacked against him.

1) Loaded gun.
2) Permit to hunt that particular day.
3) Presence on land was clearly with the intent TO hunt.
4) Behavior was indicative of the act of hunting.
5) Camo garb and other required gear FOR hunting.

He just better hope he gets a bunch of people like some on here that have a boner for GW's and 'THE MAN' and not rational, logical people.