New York, Dhu-AlQa'dah 18, 1435, Sep 13, 2014, SPA -- Police in three states searched on Saturday for a shooter or shooters who killed a state trooper in an ambush at a police barracks in Pennsylvania, police said according to Reuters. Later on Saturday morning, police said they were questioning a man about the shooting, although it was not immediately clear whether the manhunt was still under way. The shooting, in which a second trooper was wounded, occurred at the Blooming Grove barracks around 11 p.m. on Friday (0300 GMT Saturday), Pennsylvania State Police Commissioner Frank Noonan said during a morning news conference. The shooter or shooters were still on the loose on Saturday morning, Noonan said, prompting a manhunt by police from Pennsylvania, New York and New Jersey. who perpetrated this heinous crime is still at large." -- SPA 19:01 LOCAL TIME 16:01 GMT www.spa.gov.sa/w