The girl according to portuguese police is dead. She was killed by her mother.
According to them, the girl's mother, wanted to get rid of the child's noise (probably she was playing with the other McCann children) gave her some pills to fall asleep, tricking her somehow (probably she said it was caramels) She gave her too many pills, so the girl died.
The parents say that they are innocent, and they act like they were criminals, being aggressive when they are blamed. They were allowed to return to their country , but they will face the court in some days again
PS Rumours say that some especially trained dogs, which can smell death, smelled it on them...