Sadly,,, the media HATES it when a "good guy with a gun" stops a potentially bad act by a bad guy. They want to ignore the facts, and refuse to give such stories the sensational press they award the thugs & terrorists they so admire.
Usually, only local news stations give a short blurb about a crime being stopped or reduced by an honest citizen with a firearm. It almost never gets into the mass media mainstream. It's only by the use of the internet, and good people spreading the news that we learn of such stuff.
And when ANYBODY working for the media,, commits a crime involving a firearm,,, it seems the local Federal LEO's fail to enforce the law. We've seen it when they've bought guns illegally, or in places where they were restricted or whatever, then used them as props for their slanted "news" programs. Yet we do not hear of them getting charged with the very crimes they supposedly want to enforce or expand.