ALFRED, Maine — A woman charged with driving onto a Maine baseball field and killing a man with her car intends to use an insanity defense. Carol Sharrow appeared in court Friday and entered a plea of not criminally responsible. A grand jury returned an indictment including manslaughter and aggravated assault against the Sanford woman in October. The 51-year-old Sharrow is charged with killing 68-year-old Douglas Parkhurst, of West Newfield, during a June 1 baseball game at Goodall Park in Sanford.