Given name: Kazik Family name: Unknown

Tadek, a new men in the underground, he turned out to be efficient in getting weapons. He secretly bought weapons from underground 'sources'. He went with Kazik to Waszyngton Street No. 80 to collect promised weapons. The Gestapo caught them. They tried to escape through the window, shooting started. Kazik managed to escape, Tadek was killed. He was one of the builders of the shelter (with Wojciechowski and Bolek) for the activists of the Jewish Fighting Organisation (ZOB)

It is not certain whether it is about this Kazik on pages: 275 and 289 (the author mentions only the first name).