Insets: Tashaun Adams and Selena Farrell. Background: Cops in Covington, Kentucky, investigate after a 3-year-old boy accidentally shot his 2-year-old brother to death (WLWT). A mother and father in Kentucky were convicted after their 3-year-old son got ahold of a gun in the dresser of his bedroom and accidentally shot his 2-year-old brother dead.