What are you talking about?
I break down exactly what you mention, there's a nice appendix at the top. I cannot help if you didn't read the whole thing, but don't claim there's an error right after you mention not reading it haha
Here's a direct link to how I break out homicides by murder weapons: https://austingwalters.com/firearms-by-the-numbers/#Murder_W...
Here's a direct link to the breakdown by gun ownership: https://austingwalters.com/firearms-by-the-numbers/#Homicide...
Take a look at the graph of murder weapon by state:
https://austingwalters.com/firearms-by-the-numbers/#Murder_W...
If you're murdered in DC you're more likely to be murdered by someones fists than by a gun. When you compare that to Alaska, you're more likely be murdered in DC by fire arm, fists, knives, etc than all causes in Alaska.
In New York State, you're less likely to be murdered than in Alaska (from any cause, including gun shots).
The point I am trying to make is there isn't the correlation you think there is.
Regarding data, I cite my sources: https://austingwalters.com/firearms-by-the-numbers/#Data_Too...
You can argue with the UN about the homicide rates, that's the data I used.