Prosecutors investigating the 1982 death of a Vatican-connected financier who was found hanged under Blackfriars Bridge in London have concluded did not kill himself, according to reports in Rome.
Roberto Calvi, nicknamed 'God's Banker', was implicated in Italy's biggest post-Second World War banking scandal.
His body was found within days of the collapse of Banco Ambrosiano, of which he was president and in which the Vatican's bank held a significant stake.
Four suspects in the case, including an alleged mafioso, have been notified of the conclusions, but have not been indicted, the ANSA news agency reported.
Their lawyers have 20 days to present any counter-arguments.
RAI state television said prosecutors believe that the Mafia killed Calvi because he had lost their money and knew too much about their operations.
Legal officials were not available this evening to confirm the reports.
Last year, a panel of forensic experts also concluded that Calvi was killed.
A Rome tribunal appointed the experts to look at new evidence, including a re-examination of Roberto Calvi's body, which Italian authorities ordered to be exhumed in 1998.
Forensic experts could not find any injuries to Calvi's neck such as those normally associated with death by hanging, reports said.
Calvi's family has long contended that he was murdered, but a London coroner's jury could not decide if the death was suicide or homicide.