London, Mar 19 (ANI): 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.
The girl was strikingly similar to Elisabeth, was a similar age, and her naked body was found close to a guest house which Fritzl and his wife Rosemarie owned and ran at the time.
According to reports, Fritzl's earliest possible murder victim is Anna Neumayer, 17, who was murdered with a bolt gun in August 1966, and whose body was discovered in a field.
She had disappeared on her way to Wels, less than 20 miles from where Fritzl was working at the time, reports the Telegraph.
The police are also probing possible links with the disappearance of Julia Kuehrer, 16, who was last seen in June 2006 in Pulkau, 60 miles from Fritzl's home.
And one of his most recent possible victims is Gabriele Superkova, 20, a prostitute who was murdered in August 2007.
Her body was found at the Moldaustausee Lake, near the Austrian-Czech border, at a time when Fritzl was on holiday there.
Now investigators are sure that Fritzl had been a habitual sex offender for more than 30 years before he turned his attentions to his daughter.
Fritzl was convicted of rape in 1967, but was released within a year despite being sentenced to just 18 months.
He later captured his daughter Elisabeth in a purpose-built dungeon beneath his home, and kept her as a sex slave for 24 years.
And after the secret of his "cellar family" was disclosed in April 2008, other women have come forward to say he attacked them.
Fritzl went to frequent trips within Austria and abroad while working as an engineer for several companies, and spent long periods in India and Luxembourg.
He was also a regular sex tourist to Thailand, raising the possibility of other victims scattered around the world.
While Fritzl will be asked to admit to any other rapes and murders he has committed, its quite unlikely that he will give a full confession of the true extent of his abominable crimes. (ANI)