The prime minister's father has said his family is "shocked, stunned and saddened" by the death of his neighbour, who was shot at her cottage.
The woman, named locally as 56-year-old Debbie Zurick, was shot at the weekend at her Somerset home, which is next to Stanley Johnson's rural estate.
Mrs Zurick was found outside the home at Winsford with severe injuries and pronounced dead at the scene.
Her husband, John, is believed to be in hospital with self-inflicted injuries.