COSTELLO: New details out of London after a knife attack kills an American woman. Right now police are ruling out terrorism after a knife-wielding man went on a stabbing spree last night killing that American and hurting five others. CNN's Nima Elbagir joins us now live near the scene with more. Hi, Nima.</s>NIMA ELBAGIR, CNN SENIOR INTERNATIONAL CORRESPONDENT: Hi, Carol. We also know that in addition to that tragic injury, that tragic killing of the American woman in her 60s, there is also at least one other American who was injured. Already flowers are being laid at the scene of the American woman's attack. This, police believe, as it stands, to be a purely spontaneous incident. That's how they're characterizing it. But of course given the current climate, Carol, investigations continue. And also given the location, this is on the doorstep of the site of that horrifying attack back in 2005 at the Russell Square underground station. So of course and also with the context of the climate of fear that is sweeping across Europe, it's understandable that police while they believe that this was the act of a man they're characterizing as mentally disturbed, they are leaving nothing to chance. And we also saw that in the response time. It took five minutes between those five distress calls to go out for police to arrive at the scene and they managed to subdue this man using only a taser. But the London police commissioner has made very clear that while this specific incident doesn't at the moment points towards radicalization, this really is a case at the moment not just in London but across Europe of when, not if.
Knife-Wielding Man Kills American Woman