A KIMBALL WOMAN WHO SHOT HER MOTHER HAS BEEN FOUND NOT GUILTY BY REASON OF INSANITY. Kimball County District Court records say the judge rendered the verdict earlier this month on 38-year-old Shirrin Sharifpour, who had offered an insanity defense. Police say Sharifpour's mother told officers that she and her daughter were at the Kimball motel Wednesday, Oct. 3 last year and were talking when her daughter went outside.