she had died, and kept her locked up until her death in 1980. It is unknown how long Fritzl kept his mother locked up in his attic, but newspapers have speculated that it may have been up to 20 years. In a report by forensic psychiatrist Adelheid Kastner, Fritzl's mother is described as unpredictable and abusive. Fritzl referred to himself as an "alibi" child, meaning that his mother only gave birth to him to prove that she was not barren and could produce children. Fritzl claims that his pathological behaviour is innate. During his prison stint for the earlier rape conviction, he admits that he planned to lock his daughter up so that he could contain and express his "evil side." He said, "I was born to rape, and I held myself back for a relatively long time. I could have behaved a lot worse than locking up my daughter." The forensic psychiatrist diagnosed Fritzl as having a "severe combined personality disorder" which included borderline, schizotypal and schizoid types and a sexual disorder and recommended that Fritzl receive psychiatric care for the rest of his life. Later reports have revealed Fritzl's premeditated plan to lock his daughter up was not for discipline but for his own gratification. Prosecutor's investigation Pursuant to the agreement that she would never have to see her father again, Elisabeth Fritzl gave videotaped testimony before Austrian prosecutors and investigators on 11 July 2008. On 13 November 2008, authorities in Austria released an indictment against Josef Fritzl. He stood trial for the murder of the infant Michael, who died shortly after birth, and faced between 10 years and life imprisonment. He was also charged with rape, incest, kidnapping, false imprisonment and slavery, which carry a maximum 20-year term. Trial The trial of Josef Fritzl commenced on 16 March 2009, in the city of Sankt Pölten, presided over by Judge Andrea . On day one, Fritzl entered the courtroom attempting to hide his face from cameras behind a blue folder, which he was entitled to do under Austrian law. After opening comments, all journalists and spectators were asked to leave the courtroom, whereupon Fritzl lowered his binder. Fritzl pleaded guilty to all charges with the exception of murder and grievous assault by threatening to gas his captives if they disobeyed him. In his opening remarks, Rudolf Mayer, the defending counsel, appealed to the jury to be objective and