Five people have gone on trial in Rome accused of murdering Italian banker Roberto Calvi in London twenty three years agoAmong the accused is Sardinian financier Flavio Carboni, his Austrian ex-girlfriend and a Sicilian mobster. Known as ‘God’s banker’ because of his Vatican connections, Calvi was head of Banco Ambrosiano at the time of its collapse – one of Italy’s biggest post war banking scandals. Soon after it went bust, Calvi was found hanging from London’s Blackfriars Bridge with bricks in his pockets – an apparent suicide. But the case was reopened two years ago and a new investigation launched. Prosecutors claim he was laundering money for the Mafia, and was murdered on the orders of mob bosses who were afraid Calvi might talk. Defence lawyers maintain that Calvi killed himself. It is a compelling mystery which has been the subject of much speculation. But with the trial underway, Calvi’s family could finally get some answers. Indeed it was the banker’s relatives who insisted on exhuming his body four years ago, to allow a fresh autopsy. New evidence at the trial is expected to focus on the results of thatexamination. Forensic experts who carried out the autopsy say it showed no evidence of injuries associated with hanging. The trial, which began with preliminary hearings today, continues in November.