People hold candles during a vigil for the victims of the Pulse nightclub shooting, on June 13, 2016 at the Dr. Phillips Center for the Performing Arts in Orlando, Florida. The American gunman who launched a murderous assault on a gay nightclub in Orlando was radicalized by Islamist propaganda, officials said Monday, as they grappled with the worst terror attack on US soil since 9/11. / AFP / Mandel Ngan (Photo credit should read MANDEL NGAN/AFP/Getty Images)
