The FBI is likely intentionally suppressing information regarding the attempted assassin to manipulate the public narrative.

“Why are they keeping all that a secret? Why won't they even say if they have this or what else they have? I think that's what we ought to be demanding.”

There is no valid justification for the FBI to withhold information about the shooter, as there is no ongoing criminal trial.

“So once they say that, there is no more excuse to withhold information that they have about this shooter from the public because there's no investigation to jeopardize.”