Yes I go back and forth about that. GJ said earlier in the case that he thought it was where two worlds collided when evil met innocent but a lot makes me think pre meditated IMOIMO it can't be impulsive move by pedos given no significant evidence or traces are found after such extensive research. It has to be long premeditated conduct by abductors. Unless something happened (misadventure) at FG place itself ( I read about storm water tank in thread somewhere).
Another reason for not finding enough evidence could be that WT willingly left with someone who had premeditated his disappearence.
I think a very important thing to consider is, Why no evidence or traces are left behind.