This was due to an investigation by White Army investigator Nicholas Sokolov, who came to the conclusion based on items that had belonged to the family being found thrown down a mine shaft at Ganina Yama.
Acest lucru s-a datorat unei anchete făcute de Nicholas Sokolov, anchetator al Armatei Albe, care a ajuns la concluzie pe baza elementelor, care au aparținut familiei, găsite aruncate pe jos într-o galerie de mină la Ganina Yama.