There was once Five women who married into an Irish tribe. In time the tribe was wiped out, except for the five women from the attacking tribes. They were PG and in time had five boys. The boys grew and in time they commanded large armies. They took their revenge by killing all that had took part in the massacre. Something to think about.
Raze one home for every person who is injured in one of these attacks.
For every person killed in one of these attacks, raze the home with the occupants in it...no notice.
You have to make the response much more severe if the purpose of it is to deter future attacks. If they all want to die for allah and jihad, grant their wishes.