Would a savvy intruder have left any evidence to be found?
I don't lean towards a total stranger abduction, but realistically, it IS possible. The Mccanns couldn't have made it any easier, actually. If the intruder was familiar with the resort area/apartments, familiar with the village, and had been watching the comings/goings of the families for a few days, the perfect storm just may have brewed that night and the intruder took advantage of the opportunity.
Perhaps the intruder was watching and slipped in through the back patio door. You know, the one that the McCanns claimed to be able to see from the Tapas bar but was later proven that this was impossible. It only takes less than a minute or two to scoop up a sleeping child and slip out through the front door. Or even back through the patio door. There is also the possibility that the intruder had a helper, a look-out. As implausible as some may find this theory, there is always the chance that an intruder just got lucky and got away with it.
Still, at least three glaring problems with the IDI theory. 1) Why did Maddie not wake up and scream? Maybe he debilitated her somehow. Maybe she did cry... but by then, neighbors might have been used to crying coming from the apt and thought nothing of it. 2) The McCann's bizarre, attention-seeking behavior (particularly Gerry) after Maddie went missing. This, however, could be attributed to their own egos and reputationsbeing more important to them than the reality that they were negligent parents, which led to their daughter being taken 3) How to explain the cadaver dog hits? This is the tough one... I don't have enough knowledge of this subject, could they have been wrong? Doubtful. But, if the cadaver dog hits are such concrete evidence, why is SY taking such a firm stance that Maddie could still be alive? Does SY recognize and accept the cadaver dog evidence?
All my observations and opinions only.
It could be lots of things.
1. Mark Warner staff that was working with children did not have UK style child work clearance. These were young people, like university gap year students from all over the world. I researched this subject well. They were paid peanuts but went to work there just for a fun. Could among them be a dangerous individual who would 'sell a child' .. yes.. They came from all over the world, some of them working for Mark Warner in the winter in their winter resorts and in the summer in summer resorts.
I found it strange that as soon as Madeleine went missing the Mark Warner moved their staff from Portugal's resort to Greek resort. The staff that worked with Madeleine.. Why?
2. Tourists with ill intents. Yes because this was a family resort with children. Ideal for sickos.
3. Someone who lived locally, no matter what nationality as in PDL there were 500 Portugese, all rest foreign residents, in winter about 1000 residents all together, in summer the number could reach 20 000. April is the low season. Maybe few thousand visitors the most. My opinion.
Since there were crimes which were unsolved, it could as well be someone who lived there, worked there and was never caught. Maybe even someone with a good reputation but same time with criminal connections. There are people like that.
4. Stolen to order. Back in 2007 there was a report from a Spanish guy Antonio Toscano or something, who was of a belief that Madeleine was taken by a German man who lives on French border and Toscano even came to Portugal to give evidence about some sect who he believed operated in Spain and he said that the German man, the head of this group was in Portugal at the time of Madeleine's disappearance. Toscano has been called a fantasist and even crazy. He named the German man. Not sure what came out of this, this was never reported further.To me this was a very very very interesting story and I urge anyone to read the Antonio Toscano reports.
5. Walked out and had accident on the street. Covered up by a local resident.
6. A member of the McCann group helped the abductor without the parents noticing. This was one of my theories but since the friends have been cleared by polices I stopped researching this theory.
7. Resort staff covered up crime.
8. Empty apartment next door, residents left that night, reported that the Police is searching for the Polish couple, were they these couple living in this apartment?
9. Local loner took her and nobody has seen him. Possible.
Etc etc..
My own most believable theory is that a resort worker with criminal contacts has entered the apartment, and has passed Madeleine through the window to accomplice and the accomplice left with her.