Germans/Germany seemed to feature quite a lot in this case as one suspect in 2009 had refused to be interviewed, though not German himself, he had a German wife. The suspect named Ray Hewlett who was being treated in a hospital in Germany for throat cancer was a known paedophile and they had many children. Hewlett had been in Portugal with his family at the time of Madeleine's disappearance .
If you can believe in psychics, one had stated that Madeleine was alive and living with a family in Germany.