Uncovering Where Italy's Aldo Morro Was Murdered

March 16, 1978, on a street of Rome five bodyguards were gunned down and Italian prime minister Aldo Moro kidnapped.  Some days later the first messages from the Brigate Rosse, a terrorist organization active at the time in Italy, was sent to the authorities. The Italian government was unsure how to deal with the demands. The Italian state refused to negotiate with terrorists, but Moro was a popular politician and the Italian people demanded actions to save his life.  Time passed, messages were exchanged, but nothing happened. On the morning of May 8, an anonymous telephone call informed the authorities of a car parked car in the center of Rome. Inside the car, the police found Aldo Moro, killed with a series of gunshots. Investigators immediately started to collect evidence. During the autopsy, small traces of sand were found on Moro's trousers. Traces of geological material were also collected from the shoes and inside the car. Forensic geologists had to answer two important questions. Could the geological evidence be tracked back to the site, where Moro was killed or his body dumped into the car? Could the geological evidence say when this happened?