The recent stabbing attacks in London were only stopped when armed police finally arrived 8 minutes later. Now, we don't know anything about what general duties police were in the area or if there were police who attempted to fight the attackers with batons and pepper spray, however, I guarantee you that if general duties police were armed, the attackers would've been killed long before armed police arrived. Keep in mind that it was a Saturday night in the middle of the city, so police are always out in force. Would it have taken 8 minutes to resolve in a major American city in a night life hot spot? I don't think so. So the question. Is 8 minutes an acceptable response time to kill killers?