A Kingsport Woman Accused In A Hawkins County Murder Has Admitted To The Crime In Criminal Court. 48 Year Old Tina Marie Luster Plead Guilty To Second Degree Murder In The Killing Of Regilla Ann Stacy. A Judge Ordered Her To Serve 20 Years In Prison At 100%. Stacy Was Found Beaten And Shot Inside Her Home On Mountain View School Road In 2013. Luster Was Charged In 2021.