25 years since nursery hero Lisa Potts saved children from frenzied machete attacker Horrett Campbell stormed St Luke's Church of England School, in Wolverhampton, as youngsters enjoyed a teddy bears picnic. Latest news email updates straight to your inboxInvalid EmailSomething went wrong, please try again later. Subscribe We use your sign-up to provide content in ways you've consented to and to improve our understanding of you. This may include adverts from us and 3rd parties based on our understanding. You can unsubscribe at any time.More info Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice It was 25 years ago today when a nursery's teddy bears picnic turned to horror in Wolverhampton.