"If capital punishment is wrong in principle, then the Church has for two millennia consistently taught grave moral error and badly misinterpreted scripture. And if the Church has been so wrong for so long about something so serious, then there is no teaching that might not be reversed, with the reversal justified by the stipulation that it be called a 'development' rather than a contradiction. A reversal on capital punishment is the thin end of a wedge that, if pushed through, could sunder Catholic doctrine from its past—and thus give the lie to the claim that the Church has preserved the Deposit of Faith whole and undefiled."
-- "Pope Francis and Capital Punishment" by Edward Feser (3 August 2018)
If you weren't interested in the counter-narrative, you wouldn't be reading this blog. So, for reference, the Vatican used to have its own public executioner, Giovanni Battista Bugatti, and yet it was somehow the seat of the Vicar of Christ. Funny how that works, innit?