Well, you could go with the whole Vatican thing and GF III.
Pope John Paul I died only 33 days into his Pontificate (August 26, 1978 - September 28, 1978). It was one of the shortest reigns in the annals of the papacy. The official cause of death was myocardial infarction (a heart attack). But there was a great deal of confusion in the details of his sudden death, and many were crying - murder! One of the items on his agenda was to clean up the Vatican bank.
On the morning of June 17,1982 a body was found beneath London's Blackfriars bridge. The corpse was dangling from a rope, weighed down with 14 pounds of brick and stone; the victim's hands had been tied behind his back, a fact which seemed to be ignored by the coroner who pronounced the affair a simple suicide. But there was much more. The body was that of Roberto Calvi, head of the elite Banco Ambrosiano, at the time the largest privately owned financial institution in Italy. A second inquest, demanded by Calvi's family, began to blow open a financial and political scandal that has reverberated throughout the continent, and beyond.
When investigators began digging into the Calvi affair, they discovered a shortfall of nearly $1.3 billion at Banco Ambrosiano. Later, the money was traced to accounts owned by the Vatican. Calvi and his bank were also involved with a shadowy figure named Licio Gelli, head of a renegade secret Masonic lodge.
Both Calvi's Banco Ambrosiano and the Vatican's Instituto per de Riligione (IOR) became conduits for laundered money of all sorts. Under the direction of American Bishop Paul Marcinkus, head of the IOR, money was flowing through the Holy See's ledgers from a number of sources, and included cash from "Stay Behind" funding and even Italian Prime Minister Silvio Berlusconi, himself a money conduit for organized crime figures.
Albino Luciana, elected Pope John Paul I, was intent on putting an end to the dirty activities of the IOR, and the tenure of Bishop Marcinkus. Various conspiracy theories have been proposed to explain how thirty days after his election to the papacy, John Paul I was suddenly found dead in his bed.
Banco Ambrosiano was in financial trouble. Calvi began skimming from the funds flowing through BA to prop up bad loans, and even agreed to "launder" drug money for Mafia elements. He reportedly sought financial help from the secretive Catholic group known as Opus Dei ("God's Work), and traveled to London to meet with group's treasurer in hopes of selling a minority stake in BA. But Calvi had crossed too many people, and the skimming operation threatened a political scandal.
Over time it has been revealed that there was a flow of money from the real life Corleone Mafia family to investments in the Vatican bank.
Hope this helps you out.
Don Cardi
