You write: I wonder what this does to Norway’s gun laws. They had been fairly permissive.
Maybe you should bone up on something before you make a statement that makes it obvious you are clueless:
Ownership
To own a gun in Norway, one must document a use for the gun. By far, the most common grounds for civilian ownership are hunting and sports shooting, in that order. Other needs can include special guard duties or self defense, but the first is rare and the second is practically never accepted as a reason for gun ownership.
Ownership is regulated and responsibility for issuing a gun ownership license is given to the police authority in the applicant’s district.
Rifle and shotgun ownership permission can be given to “sober and responsible” persons 18 years or older. The applicant for the permission must document a need for the weapon.
For handguns, the lowest ownership age is 21 with no exceptions allowed. For inherited weapons, it is up to the local police chief to make a decision based on the individual facts of the case.
An applicant must have a clean police record in order to obtain an ownership license.
Right, like I said, they’re fairly permissive. In Norway you can own and use guns. Nothing in your post argues against that. According to Eurotwit this guy owned three guns legally.