The US, with its fairly liberal gun laws, has a fairly high rate of intentional homicide (4.8/100,000). But higher on the list are some countries with much more restrictive gun laws, including Bermuda (7.7) and Greenland (19.4). We can’t make a one to one correlation of the prevalence of guns to the homicide rate.
Take a look at this chart and sort by the “rate of ownership”. The US is at the top, by a wide margin. Next sort by “homicide by guns per 100,000 people”. Now the US falls just about the middle. If there were a correlation of “gun ownership” to “gun homicide”, we would expect that the second column (rate of gun ownership) and the sixth column (homicides per 100,00 people) to be in nearly the same order. But there is no discernable correlation at all. South Korea, 149th in gun ownership is right next to Norway, 11th in gun ownership, when sorted by homicides per 100,000 people. Algeria and France have the same gun homicide rates, while the former is 78th in gun ownership, and the later 12th. Algeria has 7.6 guns per 100 people, France has 31.2
This chart, which shows both murder rates and gun ownership rates by state in the US. The lack of correlation is even more staggering. Washington DC has the lowest rate of gun ownership by a wide margin, at 3.6%, and the highest murder rate in the country. The next lowest rate of gun ownership level is Hawaii, at 6.7%. Washington DC has a murder rate of 21.8 per 100,000, which is more than double the next highest murder rate, Louisiana, at 9.6 per 100,000.