I would be willing to bet that he used a Range Rental Gun. If you would have had access to a gun, I think he might have committed this cowardly act prior to his training class. Probably in front of a crowd also. Would be interesting to know. I know that some employee’s of indoor ranges that are basically unsupervised get a little nervous when a questionable person with apparently NO or very little knowledge of what gun (caliber - ammo - eyes and ears) they want to rent for their paper poking. Also, I have been told by these peeps that along with these attributes, they really work up a sweat when this type of gun renter says that a;though he doesn’t own a gun, he brought his own target.
He didn’t want to wait the 2 weeks or perhaps wouldn’t have passed the background check. There’s more to this story.