WGIL Radio reports 18-year-old Alex Horton was arrested Thursday night at his mother's home. He's being held on $250,000 bond on a charge of possession of a firearm by a felon.
Authorities have been searching for Horton and another 18-year-old in connection with the Dec. 22 shooting that killed Javon Butler. His body was found in the backyard of a Knox County home.
Investigators are still searching for the second teenager after a warrant was issued for first-degree murder and firearms charges.
