Scholars of genocide and mass killings have proposed several theories expla
ining how the behaviors of governments, political leaders, and ordinary cit
izens contribute to extreme violence. Many of the explanatory constructs de
veloped in these theories bear a striking resemblance to core concepts of c
riminology or could be readily integrated with criminological ideas. As exa
mples, this paper briefly describes the ideas of Herbert Kelman, Daniel Jon
ah Goldhagen, and R.J. Rummel from the perspective of criminology and exami
nes their applicability the recent genocides in Bosnia and Rwanda. The conc
lusion is that criminology, by largely ignoring the crime of genocide, has
missed opportunities to both contribute to the field of genocide studies an
d to improve the specification of its own ideas.