An American woman was killed and five other people injured in a stabbing attack in London’s Russell Square by a Norwegian man of Somali origin who was arrested after the incident, authorities said. "So far we have found no evidence of radicalization or anything that would suggest the man in our custody was motivated by terrorism," Rowley said. He said the woman who died was a 60-year-old American, and the five injured people are British, American, Israeli and Australian. None had life-threatening injuries. Two remain in a hospital, while three others have been discharged.