The US is virtually alone among developed nations in still applying the death penalty

Evidence

The death penalty is being abolished around the world. The United States is virtually alone among developed democratic nations in applying this lethal penalty. Even as the legal and empirical disputes continue, support for the death penalty is waning. Public opinion on the morality of the death penalty is sharply declining. Many states have abolished or suspended it. Most of those that retain it rarely execute the condemned inmates on their death rows, so they are practicing de facto abolition. — Albert Bandura, Moral Disengagement, 2092