LOS ANGELES — (AP) — Officials say an off-duty Los Angeles police officer violated departmental policy last year when he shot and killed a mentally ill man who had attacked him and his young son from behind in a Southern California Costco.

LAPD Officer Salvador Sanchez opened fire June 14 in a Costco in Corona, killing Kenneth French and critically injuring his parents. French was moving away from Sanchez when he opened fire.

The Los Angeles Board of Police Commissioners ruled Wednesday that Kenneth French’s conduct did not present an imminent threat of death or serious bodily injury - meaning that the use of lethal force was not “objectively reasonable.”