When a previously peaceful person or location becomes an epicenter of violence, it's a good bet that transiting Pluto is aspecting the natal or progressed Pallas of the astrological chart of that person or location. Examples abound. The current unrest in Charlotte NC, triggered by a police shooting, is apparently no exception.
While I can't locate "birth data" for the (ancient by American standards) city of Charlotte, Wikipedia's history of North Carolina lists the date of the "creation" of North Carolina as December 7 1710. The "natal" Pallas for this date is at 16 Sagittarius, and the current progressed Pallas is at 17 Capricorn, currently conjoined by transiting Pluto at 14 Capricorn. Other factors certainly tie into the current wave of unrest, such as transiting Mars currently trine NC's Mars in Leo and conjunct NC's progressed Jupiter in Sagittarius.
Pluto is nowhere near finished with North Carolina's progressed Pallas, so it should not surprise us to see more trouble in that state over the next year or so.