The incident happened on W. Shades Valley Drive Monday just before noon.
The victim, 53, who was shot in the small of the back, was expected to survive. Medics took him to Baptist South Hospital with minor injuries.
The suspect, 54 year-old Johnny Humphry, was arrested on the scene and charged with 2nd Degree Assault.
When asked why the suspect wouldn't face attempted murder charges, Barnett explained that state law requires proof of intent to kill someone. "Shooting them in the head..." was an example he offered as definite intent to murder.