An 18-year-old gunman wearing military gear and livestreaming with a helmet camera opened fire with a rifle at a Buffalo, New York, supermarket in what authorities described as “racially motived violent extremism,” killing 10 people and wounding three others Saturday before he surrendered, authorities said. (May 15) Subscribe for more Breaking News: http://smarturl.it/AssociatedPress Website: https://apnews.com Twitter: https://twitter.com/AP Facebook: https://facebook.com/APNews Instagram: https://www.instagram.com/APNews/ ​ You can license this story through AP Archive: http://www.aparchive.com/metadata/youtube/3396e9a1243e4e9bacf738523e130650