1. Meihecha teisi he won’t? Why assume he’ll do TESHUVA?
2. We’re not. Ba’asher hu shom, he’s a rotzeiach rasha who would kill a Yid in a second if given the opportunity.
3. Known terorists
Also noted: we are in agreement that he should be incarcerated for life optimally, and that’s sufficient. If not for the fact that the Israeli government is chasud meod to release him, I would agree that it would be assur to kill him.