Gelli was the master of the P2 lodge, and he received a notification on 19 July 2005 informing him that he was formally under investigation on charges of ordering Calvi's murder, along with Calò, Diotallevi, Flavio Carboni, and Carboni's Austrian girlfriend Manuela Kleinszig. The other four suspects had been indicted on murder charges in April. According to the indictment, the five ordered the murder to prevent Calvi "from using blackmail power against his political and institutional sponsors from the world of Masonry, belonging to the P2 lodge, or to the Institute for Religious Works (the Vatican Bank) with whom he had managed investments and financing with conspicuous sums of money, some of it coming from Cosa Nostra and public agencies".