Bomb it, eh? Let's hope nobody is walking by on the street, or in neighboring flats (who BTW might not be thrilled with the collateral damage to their property.)
How about starting by simply raiding, taking those who may have been involved into custody in a sweep, and padlocking the place first? Might be a more rational Day 1 start.
A small device onajihadist imans cell phone would make his head pop. a la "Scanners" without a huge collateral problem, but with an instructive effect on his congregants. "Pop, pop, fizz fizz, oh what a relief it is!"
If raiding works, fine, but after a certain point, their violence must be met with more than writs, and three hots and a cot!