I believe the FBI, CIA et al have a whole crew of ‘potentials’ they are grooming for jobs like this.
They look for the proper political sympathies,
they look for proficiency with weapons, and then they start fostering unrest and dissent against “enemies of democracy” as they put it. Programs like the CIA’s MKUltra program were REAL. Throw in some ‘easy access’ to the target and they got what they started out for. An attempt.
Routh is a dead man walking. Can’t afford to have him live to spill the beans.