Fritzl was 'tyrant' at home: Sister-in-law

The wife of Austria’s accused “horror father” Josef Fritzl never believed her husband was involved in the 24-year disappearance of their daughter, even though he had already served an 18-month prison sentence for a 1967 rape conviction, her sister said.

In a television interview, the sister-in-law of the man accused of imprisoning his daughter in a dingy dungeon for over two decades, repeatedly raping her and fathering her seven children has provided the intimate details of the life of oppression inside the Fritzl home.