Roberto Calvi was initially thought to have committed suicide after
he was found hanged under Blackfriars Bridge On June 18, 1982. Private investigators and journalists have claimed there was more to Calvi's death than meets the eye.
It is alleged that he was profiting from vast sums of money being laundered by the Mafia and the Vatican. The Vatican ran the only unregulated bank in the world. It is claimed this meant money in it could be invested, and the profits would not be subject to tax laws because Italian regulators could not see it.
http://www.dailystar.co.uk/news/latest-news/470514/Vatican-Roberto-Calvi-Mafia-London-1982-Blackfriars-Bridge-Channel-5-murder-death
It is alleged that he was profiting from vast sums of money being laundered by the Mafia and the Vatican. The Vatican ran the only unregulated bank in the world. It is claimed this meant money in it could be invested, and the profits would not be subject to tax laws because Italian regulators could not see it.
http://www.dailystar.co.uk/news/latest-news/470514/Vatican-Roberto-Calvi-Mafia-London-1982-Blackfriars-Bridge-Channel-5-murder-death