As the Church's teaching on contraception cannot "develop" in a way that would declare its intrinsic evil to be good, so the right of a state to execute criminals cannot "develop" so that its intrinsic good becomes evil. For Cardinal John Henry Newman, development of doctrine involves "preservation of type." Changes in the way a doctrine is expressed and applied cannot alter its essence.
I would also suggest that anyone who says Cardinal Avery Dulles is on the same page as "Father Rutler" should read the article in FIRST THINGS to which Cicero alluded.
What we have in this thread is a good example of right-wing "cafeteria Catholics" exactly like those Archbishop Chaput cricitized in the remarks I cited. They even claim the Holy Father is taking a stand against Church teachings! And they ignore the very clear sense of Scripture when it suits them--the very thing they denounce the Episcopalians for doing!