There are laws against murder. There are hate crime laws. By law, churches in South Carolina are gun-free zones. So what new law, regulation, or edict would have stopped a crazed hate-filled murderer from shooting up a church in Charleston?
When the President calls for even more gun laws citing this stuff does not happen elsewhere, he must be golfing instead of watching the news. Looks like plenty of folks are being killed in Africa and the Mideast. Didn't a bunch of people at a magazine get shot to death in France? Didn't some guy shoot 19 people in Norway? A bunch of school kids were slaughtered in Chechnya.
Gun free zones are target rich environments.