Genocide 's foot soldiers were neighbors of those they tortured and killed . Many ordinary people are forced into participating , researchers say . Architects of genocide use collective memory , mob mentality to implement their plan . Other tools include propaganda and propaganda .
Genocide 's foot soldiers were neighbors of those they tortured and killed . Many ordinary people are manipulated into participating , researchers say . Architects of genocide use group identity , mob mentality to execute their plan . Other tools include propaganda and dehumanization .