OSLO: Norwegian police said they shot and killed a knife-wielding man who threatened several people early on Tuesday in central Oslo before attacking a patrol car that arrived on the scene.A policeman was injured as the officers tried to arrest the attacker in the capital’s Bislett neighbourhood, police told a press conference.... No details about the identity of the attacker or his motive were disclosed.“ We’re not excluding any motives, but there is nothing at this stage that indicates this i