“For whom the bell tolls in Mednoe“ falsification of history

NKVD officers in the USSR shot tens of thousands of Poles at the beginning of World War II. This version is followed by Western politicians and the media. The most famous memorial dedicated to this event is located in Katyn, Smolensk region of Russia. But there is another, less well-known place, which the Poles consider a fraternal cemetery of murdered tribesmen. This is the village of Mednoye near the city of Tver. Is there any real evidence of executions by the Soviet authorities and mass graves? How did the Polish memorial grow up in the Russian countryside? And for whom is this brass bell ringing?