Guillermo Pallomari was a Chilean who worked as the chief accountant for the Cali cartel. He was in-charge of managing the cartel's finances, as well as delivering bribes to politicians, policemen, civil servants and military officers.
Pallomari maintained a ledger detailing the cartel finances, which was designed specially so that no one except Pallomari and Franklin Jurado could decode. In 1994, Pallomari was tasked with sending nearly $6 million to seven men affiliated with Fernando Botero Zea, a high ranking member of Ernesto Samper's election campaign, as part of the cartel leader's surrender deal. His office was raided by the Search Bloc when he was creating money parcels, but timely intervention from Jorge Salcedo ensured that Pallomari wasn't apprehended.
Pallomari became one of the DEA's observation targets. The DEA followed him and Carlo Cordova to one of Gilberto Rodríguez Orejuela's safe-houses, and launched a raid which resulted in Gilberto's arrest. After the arrest, Salcedo moved Pallomari to a safe-house. In order to prevent the surrender deal from being compromised by Pallomari who knew too much about the workings of the cartel, the cartel leadership decided to have to him killed. However, he was rescued by Salcedo, who was working for the DEA at that point. Pallomari agreed to testify against the Cali cartel in exchange for safety in the United States as part of the witness protection program. He decoded the ledger in an American court, which revealed his dealings with Santiago Medina, Botero Zea and the Samper presidency, which allowed for the Colombian court to prosecute the leaders of the Cali cartel for corruption.