Interesting theory. What I find incredulous is the notion that he stashed the body, called the world's media and then picked the body up a few weeks later and took it to another location, because this is what it would involve. Would take some balls and how would you know the body was hidden well enough for all that time whilst huge searches were taking place? I imagine there are many ways to conceal a body effectively such as weighing it down with stones and submerging in water and retrieving later. I've often felt quite suspicious of Amaral's involvement tbh concerning the dogs and his history... we are all guessing here though imo and one day perhaps we find out the truth. That's my main area of interest here to see this puzzle finally solved. Don't really care who did it as whoever did deserves to be punished. I think the McCanns should be given the benefit of the doubt given the information at hand otherwise of course they would be charged... and without the dog alerts there would be not much to debate imo.
The notion of a stranger having the capability to stash a body well enough for searchers who knew the area well, professionals, their dogs and scavengers not to come across is a highly unlikely one.
I think Mr Amaral knew that the dogs proved nothing … which led to his haste to have the Drs McCann declared arguidos just a couple of days before the change in the law which would have required that proof was presented to allow such a step.
He was gambling all that one of them, preferably Dr Kate McCann would crack and confess.