The people without a gun- like the Japanese Prime Minister recently. You can make a gun with a pipe, a nail and a block of wood. That's what the assassin used. It's called a zip gun.
Anyone intent on murder is gonna ignore gun laws. Murderers prove that every week in Chicago. Nobody can protect you better than you. 6 people proved that in the past year- stopping spree shooters- in "gun-free" zones.