I've enjoyed reading this thread; well, as much as I can given the unhappy subject. I missed the thing about phone calls and somewhere there was mentioned a Charles Croes - who is he, please? The DJ was Steve Croes, right? And he's a cell phone supplier?
As for personal accountability: we all make mistakes in judgment. Natalee did not use good judgment. Two friends said they left an hour before she did - but they had no way to know when she left unless someone told them. They said she was NOT drunk then. She must have had some help getting 'drunk' that fast. Especially since they were to leave the next day, one would think NH would turn in earlier.
I think the Kalpoes don't know what happened. And Joran and his father do. And I think they know the body won't be found, either because she's not on the island or the body has been disposed of in such fashion as to make it nonexistent.
In this country, they'd get away with it just like MJ and OJ.
Criminy, we did the club scene on the Riviera, but we still slept in our beds at night.