Christian Brueckner, the man German authorities suspect is behind the 2007 disappearance of Madeleine McCann, has written a disturbing letter from behind bars in which he sneers at investigators and declares they’ll never find any evidence linking him to the case.

The 48-year-old convicted rapist, currently serving time in a German prison for attacking a 72-year-old woman, appears to mock the investigation in a vile note obtained by The Sun. Continues…