A Hiltons Virginia Woman Convicted Of First Degree Murder Will Spend The Rest Of Her Life Behind Bars. 54 Year Old Valerie Arnold Was Found Guilty In The 2010 Disappearance And Death Of Ntasha Gross Of Johnson City. Arnold Was Also Convicted Of Conspiracy To Commit First Degree Murder And Accessory After The Fact. Judge Charles Flannagan Ordered Arnold To Serve Life In Prison On The Murder Charge With An Additional Ten Years For Conspiracy And 12 Months For The Accessory. The Charges Are To Run Concurrently.