Hopefully with new gun laws in TX more people will carry. Stop these nutjobs from the start.
I imagine that concealed carry couldn't have done much in this case. A running street battle in vehicles with cops right behind him.
But, I'm standing with John Lott in general... "More guns = less crime!!". The only thing that stops a bad guy with a gun is a good guy with a gun... whether that be a cop, or a concealed carry license holder. "Let's Roll!!!"