2027 is an underestimate according to his Wiki entry https://en.wikipedia.org/wiki/Martin_Ney which is interesting in itself.
" Since the BGH has confirmed the particular severity of the guilt, the minimum term of imprisonment of 15 years, which is usual for life imprisonment, will be extended"
He sounds a very unlikely candidate as Madeleine's abductor, from what I can see.
To be fair, apart from the fact that he prefers boys to girls - he is "on paper" a super likely candidate....a thrill seeker who got off entering super high risk establishments to both rape and murder. I guess taking a look at Wikileaks long list of his crimes - with both abductions and murders he seemed happy to return to the same establishments on multiple occasions. As a mother, I would ask the following questions - if your child's school was targeted more than twice - would you not be out with your billboards demanding more questions. In fact, how does a man with such a record - take 20 years to take down?? Who turned a blind eye to him / who buried evidence?? Also, how did he manage to adopt a male child during his raping and murdering spree. Also, how does he end up in Portugal when he was serving a 10 month probation in Berlin in 2006. Put it all together and you have to ask -if he was in Praia Da Luz - who did he owe favours to? And how, in God's name did he manage a 20 year career when he re-visited so many times??? Maybe SY are onto something....but if they are, there must be more to this man. None of it makes sense. Madeleine would never have been a personal preference for him - but if they have found some kind of link. Then who else was involved and why did someone like Amaral practically break his chops to try and kill this lead????