FBI did not think Orlando shooter Omar Mateen would ‘go postal’ in 2013

From Yahoo:

Back in 2013, the St. Lucie County sheriff’s office and the FBI opened the investigation into Mateen after his coworkers at the security firm G4S Secure Solutions reported that he might have ties to Dzhokhar and Tamerlan Tsarnaev, the Boston Marathon bombers, or Nidal Hasan, who was the Fort Hood, Texas, shooter.