Shaw was also a precision marksman, ranking fourth in the United States in 1962, and an expert fly fisherman. In his later years, Shaw lived and wrote in the Newbury Park section of Thousand Oaks, California. He died on December 30, 2004, aged 94. According to his publicist, he had been "in ill health for some time, but I don't know the specific cause of death." In fact, Shaw had long been suffering from diabetes. In 2005, Shaw's eighth wife, Evelyn Keyes, filed suit, claiming she was entitled to one-half of Shaw's estate, pursuant to a contract to make a will between them. In July 2006, a Ventura, California, jury unanimously held that Keyes was entitled to almost one-half of Shaw's estate or $1,420,000. She died less than two years later from cancer.