A judge in Madhya Pradesh who sentenced seven men to life imprisonment for their role in a lynching case is facing a campaign of protests, threats and abuse. It is disturbing that sections of the public have reacted not with concern about the man who was beaten to death by a mob, but with anger that those found guilty of the killing were punished. The reaction points to a particular way of thinking about mob violence, justice and the rule of law, and deserves a psychological explanation.