https://www.raiplay.it/programmi/farwest - One of the gang's most emblematic actions was the double homicide in Castel Maggiore, near Bologna, in which two very young Carabinieri officers, Cataldo Stasi and Umberto Erriu, lost their lives. Investigators interpreted the crime as "self-defense" by the Savi family, but many details about it don't add up, suggesting a premeditated ambush facilitated by other accomplices.