‘Hero’ Who Ended Terror Rampage Was Convicted Killer

Simon Dawson/ReutersLONDON—A frenzied knife attack by a known terrorist who was let out of prison early on parole was halted by a posse of Londoners that included a convicted killer on day release.The first deadly terror attack in Britain for two years spilled out of a Cambridge University event on rehabilitating ex-cons. A university spokesman told The Daily Beast that the terrorist Usman Khan had been invited to the event, but could not confirm reports that he had addressed the symposium