And if anyone is charged and convicted of having one, the penalty and fines should be massive. The fines should then go into a fund that helps the victims and survivors of mass shootings. The purchase if large quantities of guns and ammunition needs to be tracked and a gun owner needs to provide a valid and justified reason as to why they need that quantity, i.e. if they are a collector, they need to have a collectors license. If the ammunition is going to used to spray targets at a gun range, then the bullets need to be available only at that location and all spent casings need to be accounted for prior to the gun persons leave the facility. A weapons tax and ammunition tax should be significant. If there are no reported incidents with the weapon, because all gun owners a law abiding citizens, the taxes are returned through income taxes.