In his lifetime, Stalin will murder millions of people. Some will be shot, others will be denied food and ultimately die of starvation, millions will be sent to die in the deep winter snows of Siberia, and many will be tortured to death. Already, during one infamous murder spree in April and May of 1940, some twenty-two thousand Polish nationals were shot dead. What began as an attempt to execute every member of the Polish officer corps soon expanded to include police officers, landowners, intelligence agents, lawyers, and priests. The shootings were conducted for nights on end, often beginning at dusk and continuing until dawn. Some were mass killings carried out in the Katyn Forest, while others were individual executions inside the Kalinin and Kharkiv prisons. Mikhailovich Blokhin, chief executioner at Kalinin, personally shot seven thousand men in the back of the head as they knelt before him. Those killings took place inside a cell whose walls were lined with sandbags to deaden the sound. As soon as a victim fell dead, he was dragged from the room and thrown onto a truck for delivery to the burial site, while another handcuffed prisoner was marched before Blokhin and told to kneel. Noting that Russian pistols had so much recoil that his hand hurt after just a dozen killings, Blokhin opted for the smoother feel of the German Walther PPK.