The article labels him a “gun nut” but never mentions the existence of any other guns. The article also says that the dad bought the rifle at least a decade ago. I don’t see how that makes the shooter a gun nut other than he was a nut who used A gun criminally. But we all know that’s not what “they” mean.
The writer is from New York and doesn’t seem to really know much about his subject. His task is to inflame New York gun haters and let them know that America has is infected with guns