It might seem that way, given that Eichmann is the only person ever to be judicially executed in Israel. But how about the case of John Demjanjuk, aka "Ivan the Terrible"? He was extradited from the US to Israel to stand trial for war crimes (being a Nazi guard at Treblinka) and was sentenced to death in Israel in 1988. However, before the sentence could be carried out, the fall of the Soviet Union resulted in the release of new evidence that showed that Ivan the Terrible was not John Demjanjuk.
The Kurds
The Shiites
The Kuwaitis
The Iranians
The Israelis
The Americans
There's only one way to settle this. Put his execution up for bid on e-Bay. Shipping and handling not included. PayPal preferred. Half of the proceeds will go to rebuilding Iraq and forming a new government while the other half will go to a memorial fund for soldiers of all nationalities whose lives were lost in this war.