The explanations placed forward in attempt to account for continued collective violence against humanity in Shoa genocide are mediating mechanisms that do not trigger participation in crime. Yet, they are vital in explaining why participation was sustained from 1933 to 1945.
In this regard, human behaviour in relation to staying with killing that applies to Shoa context can be explained in terms of: scapegoating, cognitive dissonance reduction, and deindividuation, diffusion of responsibility, habituation and dehumanization (Kelman1958). Cognitive dissonance reduction occurs when individuals counter cognitive dissonance by modifying either their beliefs or their behavior to avoid behaviour-belief conflict (Kelman1958). Thus, non-specialised crime perpetrators in Shoa genocide crime upon acting in the first crimes of looting Jews properties and killing them, they shifted their attitude even if they had disagreed initially, in favour of killings to harmonize their behaviours with attitudes to reduce cognitive dissonance.