Interesting article and good read. I can’t speak to many of the states but I can speak to KS, MO and OK.
Highest rate of violent crime and murders in KS happen within a few blocks of Quindero and 7th st (inner city). Same issue with Wichita. MO problem centers are a square mile around Troost and maybe 60th, ironically very close to one of the richest parts of KC metro and an inner city section of St. Louis.
Tulsa and OKC is spread out a bit more, but the general theme exists in that the inner city poor sections of the cities account for an outsized number of the murders. Not sure what the total takeaway is but it gives more context than looking at entire states or even entire cities.