Orlando Nightclub Massacre Live Blog: Latest Updates on Pulse Shooting

Forty-nine people were killed and 53 more were wounded when a gunman launched an assault on a gay nightclub in Orlando early Sunday.

• The shooter, killed in a shootout with police after a three-hour siege, was Omar Mateen, 29, of Fort Pierce, Florida.
• Mateen called 911 before the attack, expressing fealty to ISIS. He had been probed by the FBI twice, but the investigations were closed. He legally bought the two guns used in the attack within the past week.
• The names of nearly all the victims have been released. Here are some of their stories.
• Twenty-seven victims remained hospitalized Tuesday. Six were in critical condition.