On Saturday night,29-year-old Omar Mir Seddique Mateen perpetrated the worst mass shooting in U.
S. history, killing 49 people and wounding 53 others. During his attack on Pulse gay nightclub in Orlando, or he pledged allegiance to ISIS and its leader Abu Bakr al-Baghdadi during a 911 call made from the club’s bathroom. Mateen has reportedly on the FBI’s radar for years — they interviewed him on two terrorism-related cases that were eventually closed. Assistant Special Agent in Charge Ronald Hopper said in a statement,"Those interviews turned out to be inconclusive, so there was nothing to retain the investigation going.”
Source: extratv.com