 Once the convictions were upheld by higher courts in January 1992, Riina ordered the murder of high-profile prosecutor Giovanni Falcone, a decision that was taken over an objection by Ignazio Salvo, who had argued that Falcone was best neutralized through political machinations.Following Riina's arrest in January 1993, Bagarella was believed to have taken over the Corleonesi, rivalling Riina's putative successor, Bernardo Provenzano.The explosion was part of a series of terrorist attacks.