Not really an end to death penalty
While Governor Pat Quinn signed a bill abolishing the death penalty, that does not mean the death penalty has ended. The death penalty will persist for those humans who committed the crime of existing in a womb. Criminals, the true experts on the subject, will not give it up, either, because they know it works just fine.
Quinn's signature drew praise from Catholic bishops, because the most recent application of Catholic moral doctrine weighs against the death penalty. If abolishing a legal death penalty brought the state of Illinois closer to Catholic doctrine, to the abolition of abortion, for example, the Catholic bishops' approval would have made some sense.
But the last thing that Quinn wants is to bring the state closer to the Catholic Church. Rather, the entire agenda of the Democratic Party, Quinn's real "church," seeks to move the state as far away as possible from any moral authority at all, be it the Pope or the Bible.
The death penalty constitutes a statement of moral law: that deadly crimes exist; and that the punishment should fit the crime. In Democratic theology, abolition of the death penalty states the opposite, just as legalized abortion, homosexuality and other crimes state the opposite.