It was supposed to be a terrorist sting. The guns were supposed to be disabled. Then why was there so much blood? The target was the American Airlines Center, the home of the Dallas Mavericks. The FBI had told Ahmed Shakir that his drug bust would go away if he helped them, and they'd supply all the weaponry, carefully removing the firing pins before the main event. It never occurred to Ahmed to doubt them, until it was too late. When John Wells is called to Washington, he's sure it's to investigate the carnage in Dallas, but it isn't.