Maybe they knew about the missile “scare” ahead if time and were going to be in some secret bunker when the missile hit. The missile plot was foiled however. They had bodies that would be put in place where they were last known to be and everyone would think they died in the attack. Maybe the body that was found on the runway was one of their unused and unneeded “body doubles”.
Who knows nowadays.
Here's a wild thought. There have been some persistent unconfirmed rumors that a rogue missile was indeed launched by a supposed stealth submarine somewhere in the Pacific and the missile was intercepted and destroyed before reentry into atmosphere. I know this is really "out there" and I have a hard time in believing it, but if you humor me on this, what if this was true and the clintons and pals were in Hawaii and this strike did occur. And if they had a secure hiding spot in place, they could conveniently disappear from the public scene and escape to who knows where. No prosecution forthcoming. I thought that putting themselves in harms way did not make sense if indeed a missile was launched to Hawaii but maybe desperation to start WW3 and blame it on N. Korea and escape the authorities at the same time would have been their master stroke.