A 15-year-old runaway has been arrested says the Knox County Sheriff's Office.
The teen's parents say they found him at a house at 929 Rennboro around noon Tuesday.
The teen then allegedly threatened to kill his mother with a knife before fleeing into the woods.
Officers say they set up a perimeter around the woods and searched for the boy with a helicopter and K-9s. They say the boy surrendered shortly after 2 p.m.
The teen's name is not being released because he is a juvenile. He is being taken to the Knox County Detention Facility and charges are pending.