US President Barack Obama makes a statement on the mass shooting at an Orlando, Florida nightclub in the White House Briefing Room in Washington, DC on June 12, 2016. 
Fifty people died and another 53 were injured when a gunman opened fire and seized hostages at a gay nightclub in Florida, police said Sunday, making it the worst mass shooting in US history. / AFP / YURI GRIPAS        (Photo credit should read YURI GRIPAS/AFP/Getty Images)