I personally think the McCann's are strong people to be able to carry on day after day as they do. They have stayed together, something that many are unable to do after the loss / abduction / death of a child.

They didn't do anything that other parents haven't done. It was a place where leaving children once asleep is common place. It's done on ships too. It's done in homes. They have to live with that every day. They both look aged and stressed, but must stay strong for the other 2 children. Their pain must be unbearable....and the fact that some keep criticising them only reflects on the other 2 children who do not deserve it. Not answering question? Following legal advice?

Dogs do not solve crimes. They may help sniff out certain contributions to that , but they don't solve anything, that is left to humans. And humans also make mistakes.

There is not a  person as a parent that has not made a mistake. I was left behind after my mother shopped at the bakers.....it was some hours before she realized I was still in my pram at the bakery. We once left home with 2 of our 3 children only to suddenly realize the baby was still at home. .... we had not travelled far. I once locked myself out of the house while my baby was in his highchair. Decades ago children were left in cars to sleep while parents visited with friends.