Gun Violence and Pipe Bombs Jolt Voters as Election Season Ends. ‘Again?’ One Asks.. Midterm Elections (2018), Voting and Voters, Pittsburgh, Pa, Shooting (2018), Bombs and Explosives, Sayoc, Cesar A (1962- ), Pittsburgh (Pa), Trump, Donald J, Bowers, Robert D (1972- ), United States Politics and Government, Bush, Gregory A (1967- )