Soviet leader Joseph Stalin (1878 - 1953) with his son, Vasily (1921 - 1962) and daughter Svetlana (1926 - 2011) at one of Stalin's dachas. Both children would face severe fate ...

For nine years, he has been digging into Russian and Soviet archives to find out who killed his great-grandfather Stepan Karagodin in 1938 during the purges and iron-fist rule of Joseph Stalin.