He is the president of the conservative political party National Progressive Force (Fuerza Nacional Progresista), and served as the main defense attorney of Ramón Báez Figueroa,[1] prosecuted for the largest bank fraud in Dominican history, the Baninter case.
"[6] During December 1999 Castillo stood beside U.S. officials in Santo Domingo and announced the seizure of three drug-transporting planes owned by Mexican drug lord Luis Horacio Cano, a man indicted on 57 counts of narcotrafficking and convicted in U.S. federal court.
[7] According to a statement released by Castillo in March 2006, drug trafficking heightened its infiltration of the Dominican political parties and the Armed Forces because of the “paradise” and protection provided during Hipólito Mejía’s presidency (2000–2004), but the current authorities firmly fight it.
[8] Since 2005 Castillo has represented Ramón Báez Figueroa in the criminal proceedings for the US$2.7 billion embezzlement case which led to the collapse of the bank Baninter and unleashed the events causing one of the Dominican Republic's worst financial crisis in its history.
The payment of the damages stems from Salazar’s case against Vincho, after the attorney publicly accused the heavyweight congressman of being linked to drug-trafficking suspect Quirino Paulino, via the ex-colonel Pedro Julio "Pepe" Goico, in a transaction of a US$1.8 million Colibri helicopter.