A Greene County Grand Jury Has Handed Down Indictments Against A Couple Accused Of Kidnapping And Killing A County Man Last February. 40 Year Old Mario Keene And 28 Year Old Amanda Harris Are Charged With First-Degree Murder. They’re Accused Of Killing Donald Gunter At His Home On Old Mountain Road In February 2014. Keene And Harris Are Being Held In The Greene County Detention Center On 600-Thousand Dollars Bond Each. They’re Expected To Appear In Court Soon.