In a lengthy letter written in Spanish and addressed to the president of the International Commission against the death penalty, Pope Francis thanks those who work tirelessly for a universal moratorium, with the goal of abolishing the use of capital punishment in countries right across the globe.
Pope Francis makes clear that justice can never be done by killing another human being and he stresses there can be no humane way of carrying out a death sentence. For Christians, he says, all life is sacred because every one of us is created by God, who does not want to punish one murder with another, but rather wishes to see the murderer repent. Even murderers, he went on, do not lose their human dignity and God himself is the guarantor.
Capital punishment, Pope Francis says, is the opposite of divine mercy, which should be the model for our man-made legal systems. Death sentences, he insists, imply cruel and degrading treatment, as well as the torturous anguish of a lengthy waiting period before the execution, which often leads to sickness or insanity.
The Pope also condemns the use of the death penalty by “totalitarian regimes” or “fanatical groups” who seek to exterminate “political prisoners”, “minorities”, or anyone seen as a threat to political power and ambitions.
But he makes quite clear that the use of capital punishment signifies “a failure” on the part of any State. However serious the crime, he says, an execution “does not bring justice to the victims, but rather encourages revenge” and denies any hope of repentence or reparation for the crime that has been committed.The view that the death penalty is never just under any conditions and that human dignity or the sacredness of life is violated by the state executing a criminal clearly contradicts Catholic teaching, including the current CCC and Pope St. John Paul II's Evangelium Vitae, both of which clearly reiterate that the state may justly execute offenders in certain cases.
A Pope professing private (e.g., not formally promulgated or taught in a formal way, such as by an encyclical) error is not unprecedented. It's not surprising to see a Pope from a country without the death penalty and imbued with European sensibilities, with their prejudice against the American justice system and use of the death penalty, express personal opposition to it.
He will never, however, attempt to promulgate his erroneous views in an authoritative way to the Church. You can bet the ranch (and the Barque of Peter) on that.