A Judge Has Denied A New Trial For A Man Convicted In The Murder Of Donald Ray Gunter In His Old Mountain Road Home In Greene County Home. Attorneys For 42 Year Old Mario Donte Keene Had Filed A Motion For A New Trial. He Was Sentenced To Life In Prison Along With 25 Years Each For Two Other Felonies. Keene Is Currently Being Held In The Bledsoe County Correctional Complex And Is Not Eligible For Parole Until 2073.