A co-worker of the suspect in the Orlando, Fla., nightclub shooting described Omar Mateen as homophobic, "unhinged and unstable," according to Florida Today, a daily newspaper in Melbourne, Fla.
Daniel Gilroy worked with Mateen at G4S Security for several months in 2014 and 2015, and said Mateen frequently made homophobic and racial comments.
He also said Mateen began sending him multiple texts a day, leading Gilroy to quit his job.
"I quit because everything he said was toxic," Gilroy said. "And the company wouldn't do anything. This guy was unhinged and unstable. He talked of killing people."
Fifty people were killed and 53 more wounded inside the crowded gay nightclub. Mateen, a U.S. citizen from Florida, is suspected in the shooting. He was killed at the scene.
Orlando Police Chief John Mina told reporters the suspect had an assault-style rifle and a handgun. The Islamic State in Iraq and Syria (ISIS) claimed responsibility Sunday for the shooting, but offered no proof for the attacks.
The FBI confirmed on Sunday it had interviewed the suspect in the Orlando, Fla., nightclub attack three times before the shooting took place early Sunday morning.
An official said the FBI first became aware of the suspect, Omar Mateen, 29, in 2013 when he made "inflammatory comments to coworkers alleging possible terrorist ties."
In the course of that investigation, Mateen was interviewed twice, but the FBI was unable to verify the substance of his comments.continue reading the story TheHill
FBI press coonference