Are Mrs and Mr mccann to blame for their daughters disappearance?

Yes as they certainly know what went on that night or are involved in it. Anyone who leaves their small babies alone night after night while they go off drinking are unfit parents. If anyone else had done this they would be serving time for neglect. They could not even see the apartment from where they were & it was not the same as if they were sitting down by the pool & could see the apartment. They should be ashamed of their behaviour & never have admitted what they did was wrong so yes they know what went on & even if she really was abducted it is their fault. They both look shifty to me & he has the sneakiest eyes, don't believe a word out of the pair of them. I just feel sorry for the children.