Josef Fritzl set to be released from prison as soon as tomorrow

Josef Fritl is serving a life sentence in prison and is suffering with dementia (Picture: AP)

Josef Fritzl could be released from prison just in time for his 90th birthday tomorrow.

The depraved rapist fathered seven children by his daughter Elisabeth Fritzl while holding her captive as a sex slave in a dungeon he built under his home in Amstetten, Austria, for 24 years.

His crimes came to light in 2008 and he has been serving a life sentence in a prison unit for ‘mentally abnormal’...