University of Pittsburgh police have charged two men with June 3 violations stemming from a pro-Palestinian protest at the university campus in Oakland. Police said in a criminal complaint that Muhammad Ali, 21, of Pittsburgh joined with others in attacking a security barrier. According to the complaint, he allegedly struggled with one officer, grabbing the officer’s baton, and was one of two people who attempted to rip a barrier from the hands of a police lieutenant, who suffered injuries to her left hand and legs.