Rome, April 5 - Premier Matteo Renzi said Tuesday Italy would only stop when it gets the "real truth" about the Cairo torture and murder of student Giulio Regeni. "It is an affair that has struck us all, I was struck by the dignity of the family who gave a huge lesson to the world. We will only stop in front of the real truth, we owe it to Giulio, to his family and to all of us. Ours is a clear, hard and strong position. We think and hope that Egypt can collaborate with our magistrates, we are willing to see the papers together and we want the truth to be found," he said. Italian and Egyptian investigators are meeting later this week to compare notes on the probe after several Egyptian versions of Regeni's torture and murder met with incredulity in Italy.