As a rule, the bishops are dead wrong on the death penalty, as reviewed:

Catholic Bishops: So Wrong on Death Penalty
http://prodpinnc.blogspot.com/2016/09/catholic-bishops-so-wrong-on-death.html

BISHOPS HIDE TRUTH FROM THEIR FLOCK: DEATH PENALTY
http://prodpinnc.blogspot.com/2016/10/bishops-hide-truth-from-their-flock.html