At least how many Jews was the unit Joachim Hamann commanded responsible for killing?
Joachim Hamann:  Hamann organized and commanded "Rollkommando" Hamann, a small mobile killing unit composed of 8–10 Germans and several dozens of local Lithuanian collaborators. Rollkommando Hamann: Rollkommando Hamann (Lithuanian: "skrajojantis būrys" ) was a small mobile unit that committed mass murders of Lithuanian Jews in the countryside in July–October 1941, with a death toll of at least 60.000 Jews.
i don't know