From 1 July to 4 November 1941 he was the leader of Einsatzkommando 2 and as such was responsible for the mass murder of Jews and others in the Baltic states.
Fra 1. juli til 4. november 1941 var han leder af Einsatzkommando 2, og dermed ansvarlig, sammen med andre, for massemord mod jøderne i de baltiske lande.