Nikolai Yezhov (see https://en.wikipedia.org/wiki/Nikolai_Yezhov ) known as "The Poison Dwarf" due to the fact of being short (153cm, 5.019ft) on the photo above with Stalin. Chief of NKVD, 1936-1938 accused of espionage and conspiracy that Stalin thought could overthrow the power. Shot at command of Stalin, 1940.