Martin Latsis
Martin Ivanovich Latsis (Russian: Мартын Иванович Лацис; Latvian: Mārtiņš Lācis; born Jānis Sudrabs; Russian: Ян Фридрихович Судрабс, romanized: Yan Fridrikhovich Sudrabs; December 14, 1888 – February 11, 1938) was a Latvian Bolshevik revolutionary, Soviet politician, and senior state security officer of the Cheka from Courland (now Latvia).