Frank Herbert was the one who dune it.
This makes a lot more sense than all the idiotic anti-McCann conspiracy theories floating around.
I think as far as common sense goes the alleged actions of the McCanns is extremely dodgy and points to some kind of a cover up, the law though requires evidence and proof much of which is missing due to the aforementioned actions and obstructions taken by the McCann's.
Problem is the Portuguese police bungled the whole investigation.
Difficult to get anything approaching concrete evidence now.
And the mccanns know it.
From all the info i have seen, i believe she was dead very early on in their holiday and they were formulating a plan before reporting her missing to the police.
^^ For example.