The officer shot Horton in the chest, neck and abdomen. Horton died at a hospital.
Authorities found that Horton was holding a realistic-looking air pistol that looked like a real handgun.
“These officers were responding to the concerns of panicked motorists about a man pointing a gun at them,” Weirich said in a statement. “He not only ignored an order to drop the weapon, but he also continued to walk toward the officers while pointing the gun at them. Mr. Horton left the officer with no choice but to discharge his weapon.”
Weirich made her decision after the Tennessee Bureau of Investigation’s probe of the shooting.