Dalia Lewis talks about death of Natasha Johnston by a pit bull

The dog is only a year old - barely more than a puppy - yet his muscled head is already twice the size of his female owner's. Though his outsized jaws are clamped as he naps in her arms, their latent menace is unmistakable. Nuzzling together, tender cheek by chestnut brown jowl, this is the first photograph of dog walker Natasha Johnston with Stan (left) - the humungous bull terrier that savaged her to death in January (scene pictured inset), after turning on her as she exercised him in the Surrey countryside with seven other pets under her care. The attack was so spontaneous and severe that it shocked the nation and brought calls for so-called 'devil dogs' to be banned by law. Until now it has been reported that Stan was an XL bully, but veterinary surgeon Dr Alison Robson says Stan was a pit bull - one of four breeds that are already illegal in Britain. 'Natasha was sure she could change Stan's temperament,' says her friend, Delia Lewis, 38, whose own dog, Shiva, (Ms Lewis and her dog pictured right) a gigantic leonberger, was among the eight-strong pack that January day, and was at first assumed to have carried out the attack.