I’ve never seen that applied to air travel, but I imagine that makes sense... the bigger question, I think, is place of origin... presumably he lives either in NYS or NYC? (Unless Jersey, perhaps) where was he coming from with the gun, and was it legal for him to have it there? Though I don’t suppose that matters as they can’t charge him with having it somewhere when they didn’t arrest him there... it’s a convoluted thing for certain.