According to the FBI Director, the bureau had that information several hours in advance of the attack. But neither the security team nor the event organizers were ever notified about it, and it is uncertain whether or not Garland police knew about it either.
Gateway Pundit Elton Simpson (on left) , reportedly tweeted minutes before the attack that he and his fellow assailant had pledged allegiance to Islamic State leader Abu Bakr al-Baghdadi. The FBI knew Elton Simpson was heading to Garland, Texas.
Shepard Smith of FOX News reports: