Orlando, June 12: Omar Mateen, a 29-year-old United States born citizen has been identified as the suspect behind the Florida Pulse club shooting that left at least 50 dead and more than 53 injured. Mateen’s parents, a native of Afghanistan had been settle in United States for quite a long time. Mateen was on radar of security officials for some time, but was not the target of a specific investigation, ABC news reported.Also Read - Nightclub shooting victims sue gunman's employer, wife

An investigation conducted by police officials showed that Mateen has a Florida security officer license and a state firearms license, TMZ said in a report. Authorities conducting the probe of Saturday night shooting said Mateen was targeting gays. the officials said in addition to terrorism this is a hate crime. Also Read - People hid in bathroom of Pulse Nightclub and texted their friends about shooting, call recordings released

The Orlando police officials who are leading the investigation along with the Federal Bureau of Investigation also believe he is a part of radical Islamic movement, although they are not sure that if it was an organised attack or if he was a lone wolf. Authorities also believe that Mateen specifically targeted a gay club. Read Also: (Florida Pulse Club Shooting: Gunman ‘with a suicide vest’ shot 20 people dead in gay nightclub, terror angle not ruled out) Also Read - Orlando nightclub gunman hit by 8 bullets in police shootout: Autopsy report

Mateen’s father was quoted by NBC news where he said, “This has nothing to do with religion”. He says, two months ago in Miami his son became angry after seeing two men kissing, and he speculates that could have triggered his decision to kill.

The intelligence agencies reportedly said, Mateen was well prepared with an assault weapon, a handgun and two suspicious devices which he carried at the nightclub. Today’s incident is one of the biggest slaughter at the hands of a gunman in American history.