Kammala jumla mai zuwa: Daya daga cikin manyan masu shirya Red Terror ga gwamnatin Bolshevik shi ne Kwamishinan Soja na 2 Yan Karlovich Berzin (1889<unk>1938), wanda ainihin sunansa Pēteris Ķuzis. Ya shiga cikin Juyin Juya Halin Oktoba na 1917 kuma daga baya ya yi aiki a cikin cibiyar tsakiya na Cheka. A lokacin Red Terror, Berzin ya fara tsarin daukar da harbe-harbe don dakatar da tserewa da sauran "ayyukan rashin aminci da lalata". A matsayinsa na shugaban sashen musamman na Red Army na Latvia (daga baya Sojoji na 15), Berzin ya taka rawa wajen murkushe sojojin ruwa na Rasha.
tawaye a Kronstadt a watan Maris na shekarar 1921. Ya bambanta kansa musamman a yayin bin, kamawa, da kashe matukan jirgin ruwa da aka kama.