What should have been a family dog walk in the park turned into every families wost nigthmare when their two dogs were stabbed with one left injured so severely that it had to be put down. Marcus Norton was walking his Mastiff puppy, Chief, and an elderly Staffordshire terrier, Molly, at a park in Pinjarra, south of Perth , on Friday, October 10. He told 9News that tragedy struck when the two dogs approached a stranger and his dog, Molly and Chief were stabbed. His daughter Chevonne McNamara