What led Omar Mateen to attack a gay club in Orlando? BBC News

The gunman behind the shooting in an Orlando gay nightclub first became known to the FBI in 2013, according to officials. Fifty people are now known to have died after Omar Mateen opened fire. Please subscribe HERE http://bit.ly/1rbfUog Islamic State's 'Most Wanted' https://www.youtube.com/playlist?list=PLS3XGZxi7cBX5GE4jXnF9bvF4C801cul3 World In Pictures https://www.youtube.com/playlist?list=PLS3XGZxi7cBX37n4R0UGJN-TLiQOm7ZTP Big Hitters https://www.youtube.com/playlist?list=PLS3XGZxi7cBUME-LUrFkDwFmiEc3jwMXP Just Good News https://www.youtube.com/playlist?list=PLS3XGZxi7cBUsYo_P26cjihXLN-k3w246