5,000,000 to 10,000,000

Killers with a tally between 5,000,000 and 10,000,000 include:

Heinrich Himmler
Country: Germany
Kill tally details: Directly responsible for the deaths of six million in German concentration camps. Collectively responsible for the deaths of over 46 million Europeans as a result of the Second World War
Vladimir Ilyich Lenin
Country: Russia
Kill tally details: Between 50,000 and 200,000 suspected "enemies of the state" executed by the Vecheka (All-Russian Extraordinary Commission for Combating Counter-revolution and Sabotage) following the 'Bolshevik Revolution'. Tens of thousands more allowed to die in prison. Five million starved to death in famine caused by 'War Communism' policies
United States presidents and their advisers
Country: United States
Kill tally details: Over 220,000 killed by atomic bombs dropped on Hiroshima and Nagasaki in August 1945. Over three million killed in Vietnam during the Vietnam War. Another 700,000 killed in Cambodia and Laos as a result of the spread of the Vietnam War into those countries. Millions more killed in conflicts in Indonesia, Cambodia, Iran, Chile, Argentina, Guatemala, Nicaragua and Iraq in which the United States was at least complicit