It had been an evening of drinking, dancing and drag shows. After hours of revelry, the party-goers crowding the gay nightclub known as the Pulse took their last sips before the place closed.
That's when authorities say Omar Mateen emerged, carrying an AR-15 and spraying the helpless crowd with bullets. Witnesses said he fired relentlessly — 20 rounds, 40, then 50 and more. In such tight quarters, the bullets could hardly miss. He shot at police. He took hostages.
When the gunfire finally stopped, 50 people were dead and dozens critically wounded in the deadliest mass shooting in modern U.S. history. Mateen, who authorities said had pledged allegiance to Islamic State in a 911 call shortly before the attack, died in a battle with SWAT team members.
Authorities immediately began investigating whether the assault was an act of terrorism and probing the background of Mateen, a 29-year-old American citizen from Fort Pierce, Florida, who had worked as a security guard.
At least 53 people were hospitalized, most in critical condition, officials said. A surgeon at Orlando Regional Medical Center said the death toll was likely to climb. [AP]