Investigators are digging into terrorist ties after the deadliest attack in the U.S. since the Sept. 11 terror attacks.
Authorities say Omar Mateen opened fire at the Pulse nightclub in Orlando, killing 49 people and wounding 53 others.
During the attack, officials say Omar Mateen called 911 two times and a dispatcher called back. Orlando Chief of Police John Mina said he pledged allegiance to ISIS. Police said he also mentioned the Boston Marathon bombers and referred to them as his "homeboys."
Police said he seemed calm amid the chaos and carnage. After a three hour bloodbath, police gunned him down.
Mateen was an American citizen with Afghan parents. Authorities believe he was self-radicalized through the internet.
With no known ties to the terror group, the shooter appears to have been an ISIS sympathizer.
Our service members continue targeting their strongholds. On Sunday alone, U.S. and coalition forces lauched 13 airstrikes in Syria and 19 in Iraq. They blasted a long list of things like a bomb factory, warehouses and tactical units.
