At the Nuremberg trials, it was stated that the first reference to the gas-vans was from a sci-fi author.
"the mass extermination of people in gas vans was ascertained without reasonable doubt for the first time in the report of the Extraordinary State Commission on atrocities of the German occupiers in the Stavropol region. This document was submitted to the Tribunal by me earlier as Exhibit Number USSR-1 (Document USSR-1). Investigation of the crimes committed by the German fascists in the Stavropol region was directed by a prominent Soviet writer and member of the Extraordinary State Commission, Academician Alexey Nikolaevitch Tolstoy, who now is deceased."
Mr Tolstoy, author of The Revolt of the Machines (1924), Engineer Garin's Hyperboloid (1926) and Nazi gas-vans (1942) died in Feb 1945, aged 62.
Another relative said of Alexey Nikolaevitch Tolstoy:
"There was no lie, betrayal, or indignity which he would no hasten to commit in order to fill those empty pockets, and in Stalin he found a worthy master. Few families have produced a higher literary talent than Leo Tolstoy, but few have sunk to one as degraded as Alexei Nikolaevich." - Nikolia Tolstoy