WildBill wrote:I believe that you are correct, and that the shooting would be justified. I also believe that the person could [and probably would] be charged for violating carrying in a 51% business. I don't know the why the person fled the bar, but if they find him his punishment will be worse than if he had stayed at the seen. I believe his identity will be discovered.
Yep, that is the Bernie Goetz scenario, the famous so-called "subway vigilante" case from 1984.
He shot and seriously wounded all 4 assailants in the New York subway. Mr. Goetz was charged with attempted murder, assault, reckless endangerment, and several firearms offenses. A jury found him not guilty of all charges except for one count of carrying an unlicensed firearm, for which he served eight months of a one-year sentence.
In this situation, he is clearly justified to use deadly force during an armed robbery. However, he should not have had a gun with him in the bar, so I'd agree he is at risk of a conviction for possessing a firearm in a 51% premises.
Another similar example would be a convicted felon who shot someone trying to rob him. If the convicted felon (who cannot legally possess a firearm) was carrying a gun and used it to defend himself, he would still likely be charged and convicted for felon-in-possession but be acquitted for actually shooting. However, if the felon opportunistically made use of someone else's gun during the robbery to defend himself, then necessity should apply in acquitting him for "possessing" a firearm.