Without a confession, a body or eye witnesses there will be a difficult time convicting anyone.
Even if Joran did rape or kill; there will be influences to create strong doubt.
It is the justice system. Based on the reality it is better to release a guilty person that falsely convict an innocent one.
Time will tell.
Also I wonder if by your theory they dont want this "story" to hang around for any length of time and a Trial would be long and drawn out and Aruba wants it all to go away quickly I'll bet.
Wow evil indeed! To late aruba, you have proven how you treat Americans and this mystery will not go away anytime soon.