Yakov Blumkin
Yakov Grigoryevich Blumkin (Russian: Яков Григорьевич Блюмкин, Ukrainian: Яків Григорович Блюмкін; 1898 – 3 November 1929) was a Left Socialist-Revolutionary, assassin, Bolshevik and an agent of Cheka and State Political Directorate (GPU).
Read more about Yakov Blumkin: Early Life, Cheka Employee, Terrorist, Persia, Vagabond Agent, Le Vivant Est Mort