THE prime suspect in Madeleine McCann's disappearance sneered as he told cops they won't find a "shred of evidence" linking him to the case.
German police began probing Christian B, 44, in 2019 and said they had "concrete evidence" the missing youngster was dead.
Investigators are now said to be "100 per cent convinced" the convicted paedo is the man responsible.
But Christian B has taunted prosecutor Hans Christian Wolters, who claims to have enough evidence to charge the rapist, and claims he is "bluffing".
Sources close to the German told The Sun Online: "B and his legal team remain sure Wolters and his investigators don’t have a shred of evidence to convict him on or charge him over.
"Their position has always been clear: if there is evidence, show it. But the police never have. That’s why they are convinced these comments are a bluff designed to get B to crack behind bars and confess to someone. That will never happen.
"B believes Wolters is simply a celebrity cop looking to make headlines.”
Christian B is currently serving a seven-year sentence forraping an American tourist in Portugal in 2006.
Prosecutors are using the time to gather as much evidence as possible before taking it to court.
Part of the evidence being probed by cops includes an alleged "confession" made by Christian B to a friend.
They are also investigating phone data showing he was at the Ocean Club in Praia da Luz when Madeleine disappeared in 2007.
Wolters told the Mirror: "It is now possible that we could charge. We have that evidence now.
“But it’s not just about charging him – we want to charge him with the best body of evidence possible.
“When we still have questions, it would be nonsense to charge rather than wait for the answers that could strengthen our position.
“That’s why we said we’ll investigate as long as there are leads or information for us to pursue."
Investigators identified Christian B as the prime suspect in Madeleine's disappearance last year.
He was first thrust into the frame in 2017 after allegedly confessing to abducting Madeleine in a bar.
The pervert was living in his campervan in Praia da Luz in 2007 and used his phone outside a nearby club just 30 minutes before Madeleine vanished.
Last year, German cops sensationally revealed they believe Madeleine is dead and know how she was killed.
But prosecutors have no proof Madeleine is dead, with no DNA or photo evidence linking the sex offender to her disappearance.
And British police are still treating her disappearance as a missing person case.
Wolters told the outlet: "It is circumstantial evidence – we have no scientific evidence.
"I personally think a conclusion will be reached next year. We have no body and no DNA but we have other evidence. Based on the evidence we have, it leads to no other conclusion."
'IN THE DARK'
It comes after Madeleine's parents said they believe the prime suspect in their daughter’s disappearance will keep trying to evade justice and fear they may never know who snatched her.
A McCann family source told The Sun Online: “Police don’t tell us what’s going on, we’re in the dark because it's an ongoing investigation.
“But if it is him, and there’s no direct and conclusive evidence he may never say a word. He’s not saying a word now.
“He’s locked up for other crimes, so at least he’s in the best place – in jail.
“Portuguese police had looked at him before and last year they looked at him again. We don't know what this means but without a confession we may never know.
“We don't know what evidence police have.
“It may be, sadly, that we may never know what happened to Madeleine. But we hope to find out. We keep hoping after all these years.”
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