An ex-con is behind bars tonight in connection with the shooting death of former Tennessee Titan quarterback, Steve McNair.
Federal agents arrested Adrian Gilliam in Florida after he admitted he sold a gun to McNair's mistress, two days before the July 24 shooting.
Gilliam was convicted of murder.
Police say Sahel Kazemi shot McNair four times as he slept, before turning the gun on herself.
Gilliam says he sold Kazemi the gun for $100.