Implant him with a tracking chip, deport him to Somalia, and when he links up with AQ in that country, rain down the hellfires.
Oh, and a preemptive FU to lefties who seek to rationalize his murder attempt, claiming tit for tat. At least this KosKid has the grace to be grateful to the FBI.
And a grateful hat tip to the informant in "the Muslim community", who brought this holy warrior to the attention of the authorities.