I think there would have been a greater moral victory had Osama bin Laden been captured alive, interrogated for intelligence purposes and then placed on trial, instead of being granted the martyr's death he craved.
The Jewish people suffered the equivalent of a 9/11 every day during the Holocaust. Fifteen years after the end of World War Two, Israel captured alive Adolf Eichmann, a chief architect of the Holocaust. He is the only person ever executed on conviction by a civilian court in Israel, which is too often portrayed as the worst of nations.
Nowadays, Israel faces a threat from Palestinian terrorism. I hope America will support Israel if it manages to eliminate its own bin Ladens.