Second, I don't have much else to say to you if you actually think that assassinating a head of state in the middle of active negotiations is anything but vile & uncivilized behavior unbecoming of a "civilized" superpower.
Ultimately, this is going to be a major strategic loss for the US and Israel. They have achieved none of the goals stated at the outset of this "operation", outside of perhaps diminishing the Iranian missile manufacturing capabilities & stockpile.