This is a controversial one, as the question of the death penalty for Christians, has been long debated, so we can expect that we may respond to this story in different ways. The Pope has revised the Catechism, to now condemn the death penalty:
http://www.catholicnews.com/services/englishnews/2018/pope-revises-catechism-to-say-death-penalty-is-inadmissible.cfm
https://www.independent.co.uk/news/world/americas/pope-francis-death-penalty-catechism-capital-punishment-trump-executions-catholic-church-vatican-a8475026.html
“Building on the development of Catholic Church teaching against capital punishment, Pope Francis has ordered a revision of the Catechism of the Catholic Church to assert "the death penalty is inadmissible because it is an attack on the inviolability and dignity of the person" and to commit the church to working toward its abolition worldwide. The catechism's paragraph on capital punishment, 2267, already had been updated by St. John Paul II in 1997 to strengthen its skepticism about the need to use the death penalty in the modern world and, particularly, to affirm the importance of protecting all human life. Announcing the change Aug. 2, Cardinal Luis Ladaria, prefect of the Congregation for the Doctrine of the Faith, said, "The new text, following in the footsteps of the teaching of John Paul II in 'Evangelium Vitae,' affirms that ending the life of a criminal as punishment for a crime is inadmissible because it attacks the dignity of the person, a dignity that is not lost even after having committed the most serious crimes."
