The robber’s gun, it turns out, was fake.

The customer’s was not.

Now the robbery suspect is dead, gunned down by the concealed-weapon-toting customer.

The case is the latest in a string of incidents across the country in which bystanders have pulled out their concealed weapons and used them against suspected criminals. Some cases have drawn heavy scrutiny, such as an Oct. 6 incident at a Home Depot near Detroit when a woman with a concealed weapons permit fired at fleeing shoplifters. She was charged with recklessly using her handgun.