Listen guys - in your arguing about "how many shots fired" - you are both missing an unstated (but absolute) fact. The purpose of using a firearm on a living entity is to kill it. Nothing more, nothing less. No other reason. So, it doesn't matter if something is shot one time, or 100 times; as long as the object gets dead - the objective has been accomplished.
Please don't attempt to argue this fact with any of the "how about shooting to just wound?" canards. That does not happen in real life.