I've heard now, that Omar Mateen's wife was found not quilty of having to do with this.
Also, that Omar Mateen's father may have been an FBI informant.
When Omar Mateen's name was first brought up as a terror threat, before the Pulse nightclub shooting, the theory is they FBI didn't pursue it to protect the father as an asset.
They looked the other way.
That all came our during the wife's trial.