Derrygirl .. I understood that .. no worries. You do have to take a course to be a concealed carrier, which includes a background check.
Unfortunately, many people carry that aren't licensed, you aren't required to be licensed to have a firearm in your house, and in Texas you can have one in your vehicle without a license.
Also, just as I suspect with Zimmerman, being overzealous isn't a crime, until you shoot someone without cause.... so he was "clean" right up until that point...
It's a bloody mess, that's what it is.