EGYPT considers that the person who killed Italian student Giulio Regeni in Cairo in 2016 is still unknown and it will temporarily close the case file on the murder, Egyptian and Italian prosecutors have said in a joint statement. Regeni, a 28-year-old postgraduate student at Cambridge University, vanished in Cairo in January 2016. His body was found almost a week later and a post mortem examination showed he had been tortured before his death. Egypt's public prosecution has evidence against a criminal gang accused of robbing Regeni but believes that "the material perpetrator" of the murder remains unknown, Monday's statement…