Omar Mateen, the man who murdered 50 people and wounded 53 more at an Orlando nightclub, reportedly called 911 moments before the shooting to pledge his allegiance to ISIS leader Abu Bakr al Baghdadi, according to NBC News reporter Pete Williams.
WATCH:
Before shooting began, shooter called 911 and swore allegiance to ISIS – @PeteWilliamsNBC says https://t.co/zz8JmfQ66a
— NBC Nightly News (@NBCNightlyNews) June 12, 2016