Moment teacher rushes out of classroom with bloody kitchen knife after boy, 15, stabbed her in head

THIS is the moment a teacher rushed out of a classroom covered in blood after she was stabbed in the head by a 15-year-old boy. Vicki Williams was attacked "out of nowhere" at Milford Haven Comprehensive School in Pembrokeshire, Wales. The teen, who can’t be named, had followed the history teacher into an empty classroom and...