Murderers are not monsters, they're men. And that's the most frightening thing about them.

The line rejects the comforting fantasy that killers are inhuman aberrations. By insisting that “murderers…are men,” it emphasizes the banality and proximity of violence: the capacity for atrocity exists within ordinary social worlds rather than outside them. The “most frightening” element is not monstrous otherness but recognizability—perpetrators can look like neighbors, classmates, or family members, and can move through everyday life without obvious markers. The quote thus points to moral vigilance and social responsibility: if evil is human, then prevention, accountability, and understanding require confronting human motives, systems, and choices rather than scapegoating a mythical ‘monster.’