Genrikh Yagoda

Genrikh Grigoryevich Yagoda was a Soviet secret police official who served as director of the NKVD, the Soviet Union's security and intelligence agency, from 1934 to 1936. Appointed by Joseph Stalin, Yagoda supervised arrests, show trials, and executions of the Old Bolsheviks Lev Kamenev and Grigory Zinoviev, climactic events of the Great Purge. Yagoda also supervised the construction of the White Sea–Baltic Canal with Naftaly Frenkel, using penal labor from the gulag system, during which 12,000–25,000 laborers died.