Iosif Grigulevich

Iosif Romualdovich Grigulevich (; May 5, 1913 – June 2, 1988) was a Soviet secret police (NKVD) operative active between 1937 and 1953, when he played a role in assassination plots against Communist and Bolshevik individuals who were not loyal to Joseph Stalin. This included the murders of claimed and actual Trotskyists during the Spanish Civil War including Andreu Nin Pérez, and an initial, failed assassination attempt against Leon Trotsky in Mexico.

Under the false identity of Teodoro B. Castro, a wealthy Costa Rican expatriate living in Rome, Grigulevich served as the ambassador of Costa Rica to both Italy and Yugoslavia (1952–1954). His mission was to assassinate Yugoslav leader Josip Broz Tito but the mission was aborted following Stalin's death in 1953. Grigulevich then settled in Moscow, where he worked as an expert on the history of Latin America and on the Roman Catholic Church.

He was a member of the Soviet Academy of Sciences, served as editor-in-chief of the magazine ''Obshchestvennye nauki i sovremennost'' ("Social Sciences Today"), and published many books and articles about Latin American subjects. Provided by Wikipedia