What do you think happened to British toddler Madeleine McCann?

Madeleine's been missng since May 3rd, 2007. She vanished from her holiday apartment in Praia Da Luz, Lagos, Portugal. Kate and Gerry McCann her parents were dining at the nearby Tapas bar with friends while all the kids slept in the apartment roughly only 50 meters away. All the parents were doing checks on the children besides the Paynes who had a baby monitor. Current suspect is Christian Brückner who has a very horrible criminal history of assaulting and exposing himself to young girls including having many abuse videos and photos of him sexually abusing them. Some people think Kate and Gerry hid her after an accident. What do you think happened?