Per capita? Really? Try per capita gun murders around the world and see what countries the US keeps company with. I mean, your argument is basically because there are lots of people, being shot is NBD because the odds are low because there are lots of people?
And yeah, again, compared to other places this is the kind of violence that happens in the US.
However, this was a targeted shooting. A deliberate murder. That does tend to be a more rare occurrence, but it’s dishonest to break it out and treat it separately from the overall use of crime related gun use in the US.