DNA results were presented by Austrian authorities in the extremely shocking and highly debated incest case. According to officials, the DNA evidence supports the 73-year-old man confessions about fathering 6 children by his daughter while holding her hostage in his basement.

The police explained that Josef Fritzl managed to deceive everyone, including his wife, his family and neighbors from Amstetten. He forced his daughter, Elisabeth, to write letters about her running away and then showed them to the family.

At a news conference, Mr Franz Polzer, Lower Austria police chief, said according to BBC: "The DNA tests provided decisive evidence that the six children that Elisabeth gave birth to have the same father. You can be sure that this man left nothing undone in order to deceive the family, his wife, the relatives, the children and everybody around him. He had no scruples to use every possible means to deceive the public and cover up his crime.”

Elisabeth have a complete statement to the police, telling them how her father lured her into their cellar in 1984, drugged her, handcuffed her and continually abused her for more than 20 years.

The investigation began with one of the teenage children who fell ill and needed immediate medical assistance. At the Amstetten hospital, in order to provide the best appropriate treatment, the doctors requested the mother’s medical history.

It was then that the suspect, Josef F, released the mother and two other children from the cellar. The woman, Elisabeth F, appeared extremely disturbed and has been receiving medical and psychological treatment ever since entering the hospital.

The awful news made people recall another shocking event that took place in 2006, when a young woman escaped after being imprisoned for 8 years in an underground dungeon.