Silver Alert issued for man last seen at Knoxville truck stop

Thomas Owen Houston, 73, was last seen at a Flying J Truck Stop on Watt Rd in Knoxville on Nov. 29. Photo: Tennessee Bureau of Investigation Thomas Owen Houston, 73, was last seen at a Flying J Truck Stop on Watt Rd in Knoxville on Nov. 29. Photo: Tennessee Bureau of Investigation Thomas Owen Houston, 73, was last seen at a Flying J Truck Stop on Watt Rd in Knoxville on Nov. 29. Photo: Tennessee Bureau of Investigation Thomas Owen Houston, 73, was last seen at a Flying J Truck Stop on Watt Rd in Knoxville on Nov.