 A five-year-old boy has died after being left in a hot car in Omaha, Nebraska for about seven hours. His foster mother, 40-year-old Juanita Pinon, has been arrested and charged with child abuse by neglect, resulting in death. About 40% of new cancer cases among adults ages 30 and older in the U.S. could be prevented by making lifestyle changes, according to a new American Cancer Society study.