Because Hamas killed them:
Gilad Shaarh, Naftali Frenkel and Eyal Yifrah went missing in Israel on June 12. Their bodies were found Monday in the West Bank.
Ah, the brave jihadis! What a threat three civilian lads--two were 16 and one was 19--were.
Israel has struck back at Hamas in Gaza with numerous air strikes. No doubt this will inspire more global outrage. #BringBackOurTerrorists.
UPDATE: Great. I hear fanatics killed a Palestinian teenager in revenge. Way to be as evil as the enemy. Smash up Hamas all you want, guys. They are the enemy. Have at it, by all means.
But keep it restricted to that.