I can't believe this makes people want to relax gun laws. Let's think about this for a moment, there would be so many more accidental shootings. I can just imagine a group of kids getting hold of their parent's guns and having a "pretend" gun fight, one of them doesn't realise the safety is off..
People saying things like "oh if more people had guns, people would be less likely to risk their lives by attempting a mass shooting", most of the people that go on these rampages end up killing themselves anyway, they would simply kill as many people as they could before they too are shot, and if there's a large crowd of people, no one is going to notice someone pulls out a pistol until it's too late.
However, if public use of guns was made illegal, then it would be so much more difficult to get hold of a gun, shootings would be less likely to take place.