More than a few lives have been lost because the death penalty was
not instituted. By that reasoning, we never should have stopped doing it. Even with life sentences, some of them have still managed to murder after being convicted.
The criminals must be doing diligent duty and stepping up to the plate to replace all of the ones that were lost, right? Good little Johnny decided to become a killer to replace the serial killer executed last Tuesday? The fact is that dead murderers have an uncanny knack of ceasing their crime with zero percent recidivism. It's the most successful form of punishment ever used.
By the way, no study has ever shown that bathing in skunk oil deters human reproduction, either. It's a disingenuous argument to counter a bad one, and I'll probably hate myself in the morning for even suggesting it.
You can't bring back the years of a person's life wasted in prison, either. You can't bring back any punishment. It's a matter only of degree. Either you're going to have to punish no criminal, or you're going to have to admit that you're risking a mistake that, to some degree, cannot be undone. If you punish no one, then you punish the victim.
I don't equate economic or technological development with virtue. That was the mistake of German
Kultur, just prior to them showing the world the vast difference between being good and being "developed," by way of a World War. Having failed at that, they tried again, in case we missed it the first time. Don't show me a developed nation that has abolished it. If you show me a good nation that has abolished it, then I might listen. If you can show me a repeating pattern, then I might take you seriously.
Incidentally, the scriptural case for capital punishment outweighs the case against it, by far. The argument that we don't live by the Old Testament is, in itself, not supported by the New Testament, except in the case of dietary laws. The strongest New Testament argument against capital punishment comes from the
Pericope Adulterae (
John 8:1-11), which, unfortunately, was most definitely not originally in that part of the Bible. Someone added it in at a later date, and no one knows where it really came from. The most favorable defense of it is that, however it got there, it came by God's design.
Everyone dies. It's only a question of when, why and how. The execution of a heinous criminal has less to do with the evil of the criminal than it does with the righteousness of the society. If a society believes that a man who takes another's life has any right to his own, then it would seem that the society has condemned itself.