I thought the article Blue linked indicated that under law, drones are defined as aircraft, and its illegal to shoot any aircraft. Under law, 747 is same as drone. Could be wrong though.
I wonder if he had lassoed it. Would that have worked?
I read that link as an opinion of a drone owner. A toy plane is not the same a real one will with human beings in it although drone owners would like to make you think they are. I'd have to read it again but did they charge the guy with anything other than firing a gun in city limits?