What If America Assassinated Kim Jong-un?

It's an interesting question. Imagine, for example, the outcome had we simply assassinated (or attempted to assassinate Saddam - remember, after attempting to assassinate Gaddafi he wasn't heard from again). Of course, we must also remember that "what's good for the goose is good for the gander." We can't complain when they come after our leaders after we go after theirs.

More or less the higher ups of NK would get another person in office.
That or we'd see war with the North Koreans due to the fulfillment of North Korean Propaganda

Which probably say that the US is imperialistic and wants to control everything, and to the simple people who have one website in North Korea and one T.V. show probably would see us killing their leadership as a sign that the leader was right.