This article attempts to interpret notes written by Zalman Gradowski, a member of Sonderkommandos, about the gassing of Jews from the Czech family camp in Auschwitz. The first part of the text presents a brief biography of Gradowski, who was murdered in the camp, as well as the story of how his notes were found. The second part of the text shows narrative strategies (narrator type, metaphors) by which he bears witness to death of Others in the gas chambers.