Kentucky authorities have arrested a high school teacher for allegedly sexually assaulting one of her students. Mary "Hanna" Mattingly was arrested in Nelson County on Monday, March 30. The Bardstown Police Department said in a social media post the 31-year-old teacher was charged with first-degree sexual abuse and procuring or promoting the use of a minor by electronic means. Mattingly is a teacher at Bardstown High School, police said. Calls to school administrators were not returned Monday.