INCEST beast Josef Fritzl "thinks he's a popstar and speaks to the TV", an expert claims.
The vile incest beast, 88, is said to live in a fantasy world as courts prepare to make a decision on where to house him for his final years.
Fritzl was sentenced to life in prison in 2009 after locking his daughter, Elisabeth, in the basement of his home in Amstetten, Austria, for 24 years and fathering several children with her.
Under the terms of his sentence, Fritzl will be eligible for parole this year.
But despite committing one of the worst crimes in history, a new report from forensic psychiatrist Heidi Kastner states Fritzl is now harmless.
She claims that he is physically frail and only moves around with a walker after a number of falls while behind bars, report.
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Kastner adds that Fritzl - who changed his name behind bars to Mayrhoff after his teeth were kicked out by other inmates at Garsten Abbey - also suffers from dementia and cognitive confusion.
As a result, Fritzl claims to have appeared in a show as a pop star, speaks of visits from relatives that never happened, or “that he just had an important business meeting outside".
The forensic psychiatrist reports that Fritzl is sometimes “fully there” and claims to have been part of a discussion program on television.
Due to his deteriorating condition, a court must now decide where to move the perverted pensioner.
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According to , expert Kastner says that Fritzl’s age-related illness “overshadows his abnormality”.
They say he could not pose a serious threat to either his old or new victims.
Fritzl is currently in an institution for mentally abnormal violators but it's possible that he will be permanently housed in a prison infirmary.
A transfer to a normal prison would be problematic due to his physical frailty, with Kastner suggesting that he's moved to a nursing home.
In a shocking interview from behind bars, the twisted Austrian beast told the Sun he wants to live to be 130.
In a rambling statement issued through his lawyer, Astrid Wagner, Fritzl made sick boasts that he would one day see his family again.
The monster also detailed the punishing fitness regime he endures every day to keep him fit for release - and the unlikely reconciliation with the family he kept underground for 24 years.