Omar Mateen appeared in 2012 documentary about the BP oil spill, CBS reports

Orlando terror attack updates: Obama meets with victims' families in Orlando June 16, 2016, 6:43 p.m.

Forty-nine people are dead and at least 53 injured in the deadliest shooting in American history after Omar Mateen, a 29-year-old U.S. citizen, opened fire and took hostages inside the Pulse gay nightclub in Orlando, Fla.

What we know:

  • All 49 victims who were killed at Pulse on Sunday have now been identified. You can read their stories here.
  • Mateen