According to Di Carlo, the killers were Vaccari and Vincenzo Casillo, who belonged to the Camorra from Naples; they were later murdered. In 1997, Italian prosecutors in Rome implicated Calò in Calvi's murder, along with Flavio Carboni, a Sardinian businessman with wide-ranging interests. Di Carlo and Ernesto Diotallevi, a member of the Banda della Magliana, were also alleged to be involved in the killing. In July 2003, Italian prosecutors concluded that the Mafia acted in its own interests and to ensure that Calvi could not blackmail them.