"Condemning him to a prolonged, futile existence and denying him "martyrdom" might be tougher on him. But call me Pollyanna -- I'm just looking for the very hardest, most permanent way to screw him where it hurts his little fanatical ego the most."
Pigbomb.
or
Retard his mental capacity with drugs, and employ him as a Synagogue janitor. Then circulate videos of drooling retarded Moussoui cleaning Jewish urinals.
The jihadi ski mask crowd will then be forced to weigh the costs.