The case you described is NOT a "spur of the moment" killing--that is pre-meditation. The act of going out to get the gun and then coming back is legally pre-meditated.
Going out to their car, getting a gun and going back in and shooting co workers and the boss is pretty much a spur of the moment decision in my book.
If the employee was already wearing his gun, and got fired, and immediately drew his weapon, that might be considered "spur of the moment". I think you mean "heat of passion" which is legally defined:
Now we are splitting hairs over LEGAL DEFINITIONS! Lets just say something has set these people off and they go back and kill.
Legal Dictionary
That would also be a pre-meditated case.
Again, pre-meditated, not heat of passion. If one of the vendors (allowed to be wearing a gun) was wearing a loaded weapon and all of a sudden started shooting the customers, that could be heat of passion. However, if a customer showed up at the gun show wearing a loaded concealed weapon and didn't surrender it at the door but when in, got angry, and started shooting, that would still be pre-meditated. That's because he consciously committed an illegal act (going into the gun show armed) prior to getting "heated."
Oh, so at gun shows you have to surrender your weapon at the door? Did not know that! Seems kinda contradictory to someone who is a gun advocate and maybe even has a right to carry to give up their gun at the door.
If the gun show participants are a "target" that means the shooting is pre-meditated. The shooter planned to go where the action is.
My point was that if a shooting can happen at a school, church, shopping mall, post office, etc. it could occur anywhere.
BTW, not everyone is armed at a gun show, and they aren't "ready to shoot anything."
I've know enough " gun nuts" in my life to know that some are if given the opportunity.
Do you have documented examples of people legally wearing concealed weapons in areas that are legal for them to access all of a sudden going nuts and begin shooting the people around them?
Never said I did.