UK Teacher's Face Slashed, Skull Fractured

Another case similar to Prof T Joseph, where a UK teacher was assaulted by students of a certain religion, who were angry that he was 'teaching other religions to our sisters.' He was in fact teaching a course on world religions, but that didn't stop them from slashing his face and fracturing his skull. The police apparently recorded the planning of the assault, but didn't stop it from being carried out.