Killer Kelley has nothing to do with lawful firearms ownership, lawful carry, or the 2nd Amendment guarantee of lawful self-defense. I am much more willing to see the herd culled of organisms fitting profiles like those of Lanza, Roof, Kelley, etal,  than suffer the abridgement of an amendment put in place by much wiser men than most of those I hear today.
It's ours' to protect for those in the future, not to give away. They will need it to regain freedom.