Sullivan County Authorities Have Released The Name Of The 16 Year Old Who Was Killed After His Car Hit A House In Sullivan County. It Happened Tuesday Night On North Austin Springs Road In Piney Flats. According To The Sheriff’s Office, It Appears The Vehicle Driven By Hunter Garrett Was Traveling South When It Left The Roadway For Unknown Reasons And Came To Rest In The Foundation Of The Home. Garrett Was Pronounced Dead At The Scene. His 14 Year Old Passenger, Riley Riggs, Was Not Injured.