PITTSBURGH (KDKA) — The U.S. Attorney’s Office for the "Western District of Pennsylvania has filed federal charges against the 20-year-old accused of inciting violence and riots in Pittsburgh on Saturday. "According to the criminal complaint, Bartels said his motive was, in part, “that he considers himself to be far ‘left’ ...” “He explained that he had previously hoped that he would be able to change things through voting, but nothing changed,” the complaint added.