where i live, it is illegal to shoot an animal unless it is damaging your property, like attacking pets and such. i think this guy should be fined, if they weren't destroying anything or being aggressive.
we had an aggressive dog in our yard attempting to kill a pet. we learned our lesson when the police and animal control came, did nothing(even when the dog charged the police officer...), and it was back in the same place the next day. so, we'll be shooting it if it happens again.