Gray Ranks
The extremely brutal interrogation of Bytnar was conducted by "SS" Rottenführer Ewald Lange and "SS" Obersturmführer Herbert Schultz. Both were later assassinated by the Gray Ranks. Schultz was shot dead on 6 May 1943 by Sławomir Maciej Bittner (aka "Maciek") and Eugeniusz Kecher (aka "Kołczan"). Lange was shot dead on 22 May 1943 by Jerzy Zapadko (aka "Dzik").