Jossy Mansur has too much control here in this picture for me. I'm sorry but imho it seems as though he is orchestrating this entire investigation. Why, for what reason.
I guess this is where the politics that some of the players in this case speaks of come in.
Is Jossy really the good cop and the Van Der Strattens, Karen Jenssen, and others the bad cops.
Or are they all a bunch of corrupted officials that have let and assisted their youths to become infected with the gambling, intoxication, fornication of this One Happy Island ?
I believe what you said is exactly correct. He IS probably orchestrating this. You have to remember all the info that was turned up by cajungirl (I think) about JM's background.
He's pulling a lot of the strings. His family controls the island, don't they? They want to get back to business.
Believe the answer is in your last sentence. The Mansurs are holding the "cards".
I've come to the conclusion that jossy is a righty and the others are extreme lefties.