CRISPIAN BALMER ITALIAN prosecutors asked a judge on Thursday to have four senior members of Egypt's security services sent for trial over their suspected role in the disappearance and murder of student Giulio Regeni in Cairo in 2016. Regeni, a postgraduate student at Britain's Cambridge University, disappeared in the Egyptian capital in January 2016. His body was found almost a week later and a post mortem examination showed he had been tortured before his death. Italian and Egyptian prosecutors investigated the case together, but the two sides later fell out and came to very different conclusions. The Rome prosecutors have…