Christian Brueckner, the suspect in the Madeleine McCann case, has hit out at the prosecutor building the case against him in a letter sent from prison.
The Daily Mirror reports, Brueckner's letter told authorities in Germany, where he is currently imprisoned on a seven year sentence for rape, to 'put up or shut up'.
He denies any involvement in Madeleine's disappearance, though prosecutor Hans Christian Wolters has repeatedly said they have evidence he abducted her and that she is now dead.
Brueckner said his life had been destroyed by 'Hitler-like behaviour', arguing that it's up to prosecutors rather than him to provide evidence.
He was officially named as a suspect in the McCann case earlier this year by Portuguese authorities so that their 15 year statute of limitations did not rule out the chances of prosecuting him.
Accusing German authorities of trying to frame him for other crimes, the 45-year-old convicted rapist argued that Wolters had lied about him and compared him to Adolf Hitler.
He is currently imprisoned for the rape of a pensioner in 2005 in the Portuguese resort of Praia de Luiz, where McCann disappeared from in 2007.
He wrote: "I can’t give any answer why a German prosecutor can act like that in the McCann case.
"The only answer I find for myself is that Hitler is still everywhere. The prosecutor has been sowing for two years now and he knows that there can't be a return.
"The whole world is watching him. To cover the blame he starts more and more inquiries against me, all of them happened many years ago and far away from Germany."
Brueckner is suspected of two incidents of indecent exposure in Portugal, while prosecutors are also pursuing a case against him over the rape of an Irish tour rep in 2004.
Wolters had previously said he had 'everything he needs' to charge Brueckner with the disappearance of Madeleine McCann and a charge of indecent exposure.
However, the prosecutor has also said that they will investigate his alleged crimes for as long as they can while he is still in prison serving his sentence.
Brueckner maintains that he is innocent of the allegations laid against him, he has previously applied for parole from prison but authorities denied his appeal after it was deemed that he carried a risk of reoffending.
He also complained about conditions in his prison cell in Oldenburg, claiming he is 'locked up for 24 hours with no TV'.
Featured Image Credit: Alamy/Police HandoutTopics: Madeleine McCann, News
Joe Harker