The George Floyd protests were outliers and the bigger picture shows that Tennessee is one of the most violent states in the country: https://en.m.wikipedia.org/wiki/List_of_U.S._states_and_territories_by_violent_crime_rate.
Even if you look at homicides per county, violence in TN is pretty widespread: https://en.m.wikipedia.org/wiki/List_of_U.S._states_and_territories_by_intentional_homicide_rate
Granted, Washington state’s homicides look fairly evenly distributed there but the worst areas are outside of Seattle. Also, based on your description of TN I’d expect it to look like Illinois where most homicides occurs in specific areas of Chicago
I’m pretty sure I live in a city between you and Dearborn but I don’t want to say the names and dox us. I just thought it was fun to piece together with the few clues and my familiarity with the area