When Run the Jewels last performed in St. Louis, everything was different.It was the night of November 24, 2014. St. Louis county prosecutor Bob McCulloch had appeared on television a few hours before the hip-hop group hit the Ready Room's stage, announcing that there would be no charges in the killing of Mike Brown by Ferguson police officer Darren Wilson. Business owners closed up shop all over St. Louis, boarding up windows in anticipation of unrest.…