About sixty thousand Jews from Wilno (Vilnius, Jewish Vilna) and surrounding townships in present-day Lithuania were murdered by the Nazis and their Lithuanian collaborators in huge pits on the outskirts of Ponary. Over a period of several years, Kazimierz Sakowicz, a Polish journalist who lived in the village of Ponary, was an eyewitness to the murder of these Jews as well as to the murders of thousands of non-Jews on an almost daily basis. He chronicled these events in a diary that he kept at great personal risk.

Written as a simple account of what Sakowicz witnessed, the diary is devoid...