Time to squash these cockroaches.
I vote for a dozen B-52’s. Let HAMAS know they’ve taken off, and keep them updated on air to air refueling and other major waypoints. Explain that you don’t believe they have any more hostages alive, and that once the Buff’s are over Gaza, they are dropping. Then have one B52 drop it’s load every hour until they produce the hostages or are buried under the rubble.