Soviet NKVD (KGB) chief Genrikh Yagoda was arrested and shot in 1938.
His successor, Nikolai Yezhov, was arrested and shot in 1940.
His successor, Lavrentiy Beria, was arrested and shot in 1953.
https://www.reddit.com/r/todayilearned/comments/4b2va9/til_soviet_nkvd_kgb_chief_genrikh_yagoda_was/
Probably should add this to quotes thread
Leaders come and go, but the executioner remains.
Its like being a general in North Korea.
..or the coach in a UK football club.