They aren't being punished, they are being eliminated in the most economical means available. Last time I checked, cats do not respond well to prison reform programs. lol Animals are an owners responsibility. I've never shot a cat, and likely never will, but they need to be controlled if their owner won't accept responsibility for them.
Great, so people will be shooting cats in the middle of the city -- and they will be aiming at cats and probably hitting kids.
One would think there are more pressing problems, then killing some poor cats, who aren't hurting anyone.