7 votes Man killed by off-duty officer in California Costco was 'mentally challenged' Posted June 17, 2019 by nic Tags: usa.ca, crime, costco, mental illness, deaths, shootings.police, police.off duty, author.tim stelloh, author.dennis romero, source.nbc news, short read https://www.nbcnews.com/news/us-news/man-killed-duty-officer-california-costco-was-mentally-challenged-cousin-n1018086 Link information This data is scraped automatically and may be incorrect. Published Jun 17 2019 Word count 336 words