Omar Mateen has been named as the shooter in the Orlando Pulse Nightclub terror attack. Mateen, 29, is a U.S. citizen from Port St. Lucie, Florida, according to CBS News. FBI says the gunman may have "leanings to radical Islamic terrorism" and it is being investigated as "an act of terrorism." Heavy.Com reveals: "Local FBI Assistant Special … [Read more...] about Omar Mateen Named as Shooter in Orlando Pulse Nightclub Terror Attack