They had (have?) a plan.
Patriots know the playbook after studying/verifying their comms.
Patriots took their plan, and used it to their advantage; most key was cranking up the speed dial, and setting legal traps all along the way.
Either some, half, or all of the DS knows they are walking into it but have no choice.
Billy wasn't a prophet, ya know. Billy did his part in putting his theories and ideas out there, and also predicting his own death to the detail. Logic says Billy was one of them. Hey, you want to look into something spoopy, though? Go on TS and look at how many Freemasons (openly, like, in their profiles) are there following people.