[brogrammer90]

More than half of these mass killings occur in "gun free zones." Who follows the law? Concealed carry permit holders. Who doesn't? The crazies.

[mininao]

Even if the ones perpetrating these crimes have no gun permits, the existence of gun permits itself makes gun ownership commonplace, allowing the "crazies" easier acquisition and possession of guns

[stephenr]

How many of the "crazies" use legally (by local laws) acquired guns?

[mininao]

And if the killings occur in gun free zones, Concealed carry permit holders won't be able to defend themselves, right ?