A Roane County teenager accused of shooting and killing a member of the U.S. Army will be charged as an adult. The Roane County District Attorney’s Office said today (Wednesday, June 14, 2017) that 15-year-old Jacob Kinney of Harriman will be charged in the shooting death of 23-year-old Marstratton Gordon in August 2016. Gordon’s family says he was on weekend deployment from Fort Campbell, Kentucky. Officers say Kinney shot Gordon in the head with a .357 magnum firearm after a fight broke out between Gordon and his girlfriend, Kinney’s sister. Authorities say Kinney entered the hallway between his bedroom and his sister’s room, pointed the weapon at Gordon, and fired one round. The bullet hit Gordon in the left cheek, killing him. Kinney is charged with second degree murder.