Pope Francis
Fratelli Tutti §255
Fratelli Tutti: On Fraternity and Social Friendship
255 There are two extreme situations that may come to be seen as solutions in especially dramatic circumstances, without realizing that they are false answers that do not resolve the problems they are meant to solve and ultimately do no more than introduce new elements of destruction in the fabric of national and global society. These are war and the death penalty.
Source: Fratelli Tutti (Vatican.va)