Open this photo in gallery: Police officers work after police shot dead an armed man earlier who set fire to the city's synagogue in Rouen, France, May 17.Gonzalo Fuentes/Reuters French police shot dead an armed man who set fire to a synagogue in the northwestern city of Rouen on Friday and threatened police with a knife, the local prosecutor said. The synagogue suffered extensive damage from the fire, but no one else was harmed, said Rouen mayor Nicolas Mayer-Rossignol, adding that the Normandy town was “battered and shocked”. “An armed man somehow climbed up the synagogue and threw an object,...