I think it is the lack of mental asylums here in US for Norway keeps the difficult cases off of the street that would best explains the disparate murder rate between two countries.

Norway has a rigorous involuntary admittance into mental asylums; US has at most strictest, 3-day VOLUNTARY admittance.

It is arguable that US mental asylums were dismantled by US Mental Health Systems Act of 1980.

In 1980 to 1993, Feds have shriveled up the states’ funds earmarked for fixed mental facilities and dedicated psychiatric hospitals of which took decades to recover in some form of private-funded psychiatry hospitals but still in no way covering all the US needs required for such care due to its “voluntary”-only approach and perhaps the lack of personal funding needed for its own mental health.

So, could that be the small price that US citizens pay for allowing freedom for some “insane” of their citizens just to roam ... freely and with unchecked access to firearms?

== Reference: ==

- https://en.wikipedia.org/wiki/Mental_Health_Systems_Act_of_1...

- https://ijmhs.biomedcentral.com/articles/10.1186/s13033-018-...

- https://www.reddit.com/r/Norway/comments/17tq0i/how_are_the_...

- https://www.news-medical.net/news/20210121/Researcher-explor...