The suspect in a hit-and-run that severely injured a veteran pled guilty at a court case on Wednesday.
Cody Gibson pled guilty to one count of aggravated assault after he struck a man with his car in April 2016.
Judge Sherry Stephens sentenced Gibson to 8 ½ years in prison.
Gibson said he was "sorry" for running down Steven Richardson, but said he didn’t know what else to do.
Richardson is a veteran who served two tours in Iraq.
Authorities say Richardson was trying to help a woman being dragged by her hair in an apparent domestic violence situation with Gibson.
Chandler police say Gibson allegedly hit Richardson at full speed; he suffered severe head injuries.