In a few cases, regimes have publicized their murders, often to intimidate people. For instance, Communist Chinese government newspapers would report… - Rudolph Rummel

The citizens of democracies are the least likely to be murdered by their own government; the citizens of totalitarian, especially Marxist systems, the most likely.

Libertarian states are by theory not only less violence prone, but when foreign relations includes the perception of other libertarian states, this inhibition becomes a mutual barrier to violence. Their mutual domestic diversity and pluralism, their free and competitive press, their people-to-people and elite-to-elite bonds and relationships, and their mutual identification and sympathy will foreclose on any expectation or occurrence of war between them; violence may occur only in the most extraordinary and unusual circumstances, or at the margins of what it means to be libertarian.

Killing that is explicitly permitted is not democide.