The murdered of a popular retired Hawkins County teacher is the subject of an upcoming episode of a popular true crime series.
Margaret Jack Sliger was shot to death in her yard in Mooresburg in May 2015.
Kyle Robert Wolfe, a 15-year-old boy, pleaded guilty to second degree murder in her death in February 2017. He's serving 25 years in prison.
The district attorney says it's still not clear why the boy killed her.
The story will be featured on Investigation Discovery's "When Murder Comes to Town" on July 31 at 9 p.m.