Twenty nine-year-old Omar Mateen, son of Afghan parents, was born in New York. The family later moved to Florida.
He was a registered democrat, loved NYPD and worked for G4S, the leading private prison & mercenary outfit in the U.S. since 2007. He is the owner of two firearms licenses – a security officer license and a statewide firearms one.
G4S takes on public contracts and has done work with the U.S. government. They have provided security personnel for the Department of Homeland Security, U.S. Customs and Border Protection at the U.S.-Mexico border, and helped transport undocumented immigrants from urban areas. They also managed security for the London Olympics in 2012.
Mateen had been “on the radar” of U.S. authorities for a while but was not the target of an investigation.
According to FBI Special Agent in-charge, Ronald Hopper, the FBI first took an interest in Mateen in 2013 after he made "inflammatory" comments to co-workers and then again the next year after he was linked to another U.S. radical who became a suicide bomber in Syria.
At both times, he was interviewed by investigators but the FBI determined he was not a threat and closed the investigations.
On June 12, 2016, he rented a car and armed with two recently purchased guns, entered a gay bar in Orlando and killed no less than 50 people and injured dozens.
In the midst of the attack, Mateen called 911 and pledged his allegiance to ISIS.
Speaking to media, Florida Sen. Bill Nelson earlier said he was told by intelligence sources that “there is some connection to ISIS,” that had not yet been confirmed officially.
“Facts seem to connect this to terrorism, but we can’t say that totally yet,” he said.