An apparent road-rage incident in Hermitage, Tennessee ended in the death of 38-year-old Tristan Walker. Detectives on the case are investigating if a person acted in self-defense.

WKRN turned to Ben Powers to learn the legal criteria for self-defense under the law and how they could apply in this case.

Nashville ABC affiliate WKRN interviewed Ben Powers about this case. Click here to read and watch the story on WKRN.