Off-duty police officer reportedly involved in shooting incident at Costco Unlisted Video

According to a report by Newser, on Friday evening, an off-duty Los Angeles police officer discharged his firearm during a Costco shootout that killed one person and injured three others. The Associated Press originally reported that it was not immediately clear whether the unidentified officer was the only person who fired shots inside the Southern California store or if another person also opened fire or had a weapon.