Rossini is charged with conspiracy, federal program bribery and honest services wire fraud. He entered a not guilty plea during a brief court appearance.
His attorney could not be immediately reached for comment.
Last Thursday, hours after FBI agents arrested Vázquez, federal officials announced they were seeking Rossini, who was in Spain.
Authorities said Rossini had provided consulting services to an Italian-Venezuelan banker who had promised to financially support Vázquez’s 2020 campaign for governor in exchange for her dismissing the commissioner of Puerto Rico’s Office of the Commissioner of Financial Institutions and appointed a new one of the banker’s choosing. The banker, identified as Julio Herrera Velutini, is believed to be in the United Kingdom and faces charges including conspiracy, bribery and fraud.
Rossini was an FBI agent from roughly 1991 to 2008, when he resigned as part of a plea deal in which he pleaded guilty to criminally accessing a sensitive FBI database for personal purposes. Most of the searches were related to Anthony Pellicano, an infamous private detective for Hollywood stars who was charged in 2006 with wiretapping some celebrities and bribing a police officer.