After the Second Vatican Council, the 1566 Catechism continued to teach that civil authorities could use the death penalty to "punish the guilty and protect the innocent. Far from involving the crime of murder, the just exercise of this power is an act of paramount obedience to this divine law, which prohibits murder."
On November 5, 2009 -- when Major Nidal Hasan killed 13 at Fort Hood, Texas -- an updated Catechism said if guilt was "fully determined" church teachings do "not exclude recourse to the death penalty, if this is the only possible way of effectively defending human lives against the unjust aggressor." Civil authorities were urged to seek "non-lethal means … more in conformity to the dignity of the human person."
Quoting a 2017 Pope Francis address, the Catechism now says, "the death penalty is inadmissible because it is an attack on the inviolability and dignity of the person." Thus, the church "works with determination for its abolition worldwide."
Catholic leaders spoke quickly when the Department of Defense said President Donald Trump backed Hasan's death by firing squad on December 3 at Fort Hood, the first military execution of this kind since World War II. After initially approving a public livestream, Trump cancelled that order but said victims' families could attend.
A televised firing squad would have been a "strong deterrent for the World to witness how America deals with terrorists and SCUM," the president posted. However, "many very good … people would rather not watch him die."
During the days when the livestream was in play, the Hasan drama offered a case study of modern Christian debates about capital punishment. Catholics cited the evolving Catechism. Protestants debated Old Testament passages supporting public executions.









