How heartless, none of the basic compassion for human life nor disgust of death and gore, a psychopath perhaps? Or simply lack of consideration from the author, either way, what a direction this story is headed in.
In all honesty the CH novels that actually adress any mental hesitation in regards to killing can be counted in one hand, a MC who supposedly was just a normal person quickly accepting killing is quite common in these type oc novel really.
It irkes me everytime, but the again, what can we do?