London, Mar 19 : Dungeon dad Josef Fritzl will be questioned over a string of unsolved murders, as police now want to uncover the details of his evil crimes in the last forty years.
The Austrian engineer is being suspected for at least four murders as well as missing persons'' cases stretching back more than four decades, in which three of the victims were teenage girls.
One of the most striking cases is of Martina Posch, who was 17 when she was raped and strangled on the shores of the Mondsee lake in November 1986.