Sorry to comment on my own post but I waited past the deadline to update it.
One other thought about today's shooting is that the shooting and ambush supposedly happened at a municipality building and although Virginia and that area was a open carry area where people can openly carry weapons usually city buildings and municipality buildings have restrictions that prohibit weapons even by the employees that work in those areas. The trouble with those restrictions of saying NO Guns or No Weapons allowed is that criminals and mentally deficient people that are bent on doing things like this don't read and abide by those signs rather only law abiding citizens do and they aren't the threat in the first place.