The Last Tsar: The Life and Death of Nicholas II by Edvard Radzinsky

>Tsar Nicholas II was executed under mysterious circumstances by Russian revolutionaries in 1918. Using diaries, letters, testimonies, and thorough research in the Russian state archives, Radzinsky reconstructs this murder and sketches the life of the last Romanov.

https://www.goodreads.com/book/show/1544176.The_Last_Tsar