A gunman opened fire at a nightclub in Orlando, Florida, early in the morning, killing at least 50 people in the deadliest mass shooting in modern US history before police killed him.
Authorities identified the suspected shooter as Omar Mateen, a 29-year-old US citizen who had previously been interviewed by the FBI about possible links to a terrorist.
For the past several days, Mattin has legally purchased both a long and a handgun, according to ATF during a press conference. During the attack, the shooter was armed with an AR-15 rifle and a pistol.
The shooter began shooting club-goers in Pulse Orlando after 2 a.m. ET. He exchanged fire with the police before he took dozens of people hostage. After a standoff lasting nearly three hours, police stormed the building and killed the shooter.
Orlando Police Chief John Mina said authorities initially said about 20 people were killed in the attack, but when they entered the building, they found far more casualties than they had expected. At least 50 people died, and at least 53 were injured.