Yes, the Don's Guns of Internet fame and/or notoriety. Guy'd been shooting on their range, came out, shot the clerk, and was shot dead by the clerk, who is now in hospital himself.
I'd make some snarky comment -- Don's has earned the full measure of its reputation -- but the fact is, if you run a gun store, with a range or not, this will happen. It's not especially common, after-hours robberies and probably even range suicides* happen more often, but when it does, it gets noticed. In this instance, the clerk was able to do the right thing.
This is the fault of the guy that did it, not where it happened. Could have happened at any other gun store. Or any store. --Could have happened at a jeweler's house; in fact, it did, earlier the same day.
* Many of the odd-seeming or strict firearm rental policies come about in reaction to these tragedies.
42 minutes ago