Originally Posted by Johnny Footstool
It's legal to own a firearm with certain restrictions (it must be registered, for one).
It's legal to discharge a firearm with certain restrictions (in areas designated for hunting or in shooting ranges, for example).
Just because a person can legally own a gun doesn't mean they can legally fire it anywhere they please. I'm sure a lot of cities have ordinances against firing a weapon in a residential district. And if someone is injured by gunfire (as in this case), I think a police investigation, including a search of the premises, is pretty easy to justify.
I'd say since it was investigated by "State Police" its unlikely that he lived within City limits. And back to the original discussion, it wasn't the fact that it was fired that was being cited as reason to search the premises. It was the fact that he had a loaded gun on his counter.