 He called his wife, Sharon, told her he had been robbed and stabbed, and that she should call the police and an ambulance.At the same time, a customer arrived at the store and found Tewksbury standing outside the building and leaning against the wall next to the telephone, bleeding from his side.The man helped Tewksbury back into store, went back to the telephone which was still off the hook, and spoke briefly with Sharon.