As i have said if the parents are not suspects abduction is odds on.
If the parents are not suspects that leaves woke and wandered and abduction.
we then have...the open window....if the parents are not suspects then we can assume they are not lying...and then we have the archiving report ...
As a remote hypothesis, the possibility of the minor leaving the apartment by her own means was explored – that would be highly unlikely physically – and after, because of an accident or by a third person intervention, she would have disappeared.
the archiving report is of the opinion that maddie leaving the apartment herself is highly unlikely and they have all the available information
All the gates and doors were closed and again it is highly unlikely that a child leaving the apartment would close them.
Finally if Maddie had left the apartment she would likely have been seen or headed for the tapas bar herself.
This leaves abduction as the most likely scenario