"Hours earlier, the FBI had sent a bulletin to local police with Simpson’s photo, warning that he was “interested in the event.” FBI Director James Comey said in a press conference following the shooting that the FBI did not have reason to believe Simpson was planning to attack the event, even though the bureau had spent years trying to build a case against him."
Juxtapose with this https://theintercept.com/2016/08/04/fbi-had-undercover-agent-at-scene-of-draw-muhammad-shooting-in-garland/
"Hours earlier, the FBI had sent a bulletin to local police with Simpson’s photo, warning that he was “interested in the event.” FBI Director James Comey said in a press conference following the shooting that the FBI did not have reason to believe Simpson was planning to attack the event, even though the bureau had spent years trying to build a case against him."