The anti gunners say "if we just pass another law, it will prevent a killing". The flaw is, if someone is going to break the ultimate law of killing someone, breaking that first law of getting a gun is not going to stop them. The die hard anti's know this, but they also know it's just a small increment to their ultimate goal of a complete ban of guns. A little at a time and after a while the last rational will be, if there was a law to not have guns, then there would be no killings. They know that won't prevent the ones you are dead set on breaking laws from just breaking the law of possession, but it will lesson the number of guns in the hands of lawful people.
That is the ultimate goal. They all know it they just don't want you to hear them say it. You have anti's who are government controllers and anti's who are just pasifists . The pacifists are dumb enough to think love can stop hate and crime and the government controllers don't want the average citizen to have a way to stop an all controlling government.