And yet if you took any significant time period that doesn't include the Breivik shooting Norway's results are just fine. I'd even think if you looked at the last 50 or 75 years (assuming we have good enough data) they'd be better than the US's. And certainly if you included Norway along with other countries with similar policies on dealing with violent criminals.
Which I don't even really think necessarily proves anything much on its own, but at least it's a meaningful data point.
The results are in and Norway is one of the worst places in the first world for per capita mass shootings, even worse than the US.
I can only conclude they are sadistic, malicious actors if they actually think this is the comparatively desirable result.