Coul;d be they fled. I've wondered. But, without their little urin?
Is it possible that the Kalpoe brothers' story of where they let Joran and Natalee off at the beach matched, but Joran's story did not match theirs?
Is it possible that they made a deal and gave info on Joran in return for getting released and must leave the island for their own safety? If so, could their "testimony" be used in their absence? Would they have to return to testify if there is a trial? If so, how could Aruban authories get them to return? I know...these are just my free-floating questions.