Story sounded familiar and then noticed article was from a year ago.
The only time a Good Guy with a Gun stopped a Bad Guy with a Gun was when a Bad Guy committed Suicide rather than be taken alive. Yeah, I know, all those 3rd hand stories but there really isn't any truth in any of it.
There isn't? Would you like some links to them? If you don't like the sources, you can always cross reference them yourself with Google.
The reason you don't know about them is because the media controls people like you. If they don't report it, it didn't really happen. It's all part of the Democrat brainwashing game; a modern 1984 method of being reprogrammed.
When a cop shoots an unarmed black thug, it's national media. When local citizens defends themselves with a firearm, or otherwise stops a crime using a firearm, it's only a local story at best and you don't hear about it.