All the documents of the investigation into the death of Manuela Murgia, the sixteen-year-old found lifeless on the slopes of the Tuvixeddu canyon, in Cagliari, on February 5, 1995, are covered by the secrecy of the investigation. And not only the documents of the new investigations ordered after the reopening of the file with the hypothesis of voluntary homicide, but also those of the proceedings already archived in the past, entirely merged into the new investigation for voluntary homicide. This was confirmed by the deputy prosecutor Guido Pani to the lawyer Marco Fausto Piras, defender of the 54-year-old Enrico Astero, the ex-boyfriend of the young woman, registered in the register of suspects in view of the technical tests on the girl's clothes, found after thirty years in the now disused Institute of Forensic Medicine of the University of via Porcell in Cagliari.

The investigations were opened in March of this year, after a technical consultation by the coroner Roberto Demontis , appointed by the family, who had questioned the hypothesis that the young woman had fallen from the cliff or committed suicide.

Having ordered the unrepeatable technical tests on the clothes found , in search of any biological traces, the lawyer of the girl's ex-boyfriend has reserved an evidentiary incident, trying to have the investigation documents from the past, all already in the possession of the lawyers Giulia Lai and Bachisio Mele, lawyers of the sisters, mother and brother of the deceased girl. In recent days, the lawyer Piras has asked to have those documents (from the outcome of the first autopsy, to the minutes of interrogation of his client and the SIT, the summary witness information, but also the material seized at the place of discovery), but the answer was negative.