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ORLANDO (CBSMiami/AP) – As the day progresses, details about the suspected shooter who killed 50 people and injured 53 more continue to trickle out.

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Omar Mateen, the Orlando nightclub gunman, had been licensed as a private security officer in Florida.

State records show suspected shooter Mateen held the firearms license since at least 2011.

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It was set to expire in September 2017.

It wasn’t immediately clear where, if anywhere, Mateen had worked as a security officer.

An armed guard license in Florida requires 28 hours of classroom training by a licensed instructor.

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