I am against the death penalty and I will outline my reasons.
In the first instance I would say I do not think it is morally wrong that if you take a life you should forfeit your own. However, why not apply this rule to all crime? If this is justice then if you steal a car you should forfeit your own. If you steal £100 pounds/dollars from someone, pay it back. If you can’t, work off the debt. I think it is more just to impose penalties such as these than put people in prison. If you are put in prison for stealing a car or money, you are punished but the person you stole from still suffers the loss and the taxpayer foots the bill. This was how the Law of Moses operated. However, in that society such a system of justice could operate. In contemporary society yes, the death penalty would punish, and it can be argued the punishment fits the crime, but just justice and punishment are two different things.
Non-arbitrary justice is not reactionary and not governed by emotion. As such what circumstances should the death penalty be imposed? There is a risk that when society is particularly outraged the death penalty would be imposed which carries the risk of arbitrary justice.
We know for certain there have been people executed for crimes they did not commit. The reason was due to the failings of the judicial system. If we have the death penalty it can happen again. We know for certain DNA evidence is subject to human fallibility and can, and has, been tampered with.
Of course we have the scenario were we are certain, and some argue in this case the death penalty is warranted. I am not saying it is not, and there is many a person I can say I would not shed many tears over. My counter-argument would be why give them the easy way out? Let them live for years in misery with what they have done. I’ll happily pay taxes for this reason. I am not saying this to be vindictive, as justice is not vindictive. I am saying it because I think they should be given the same life sentence they handed to the families of their victims have.
Many people who have committed horrendous crimes want to die - they want out so they don’t have to live with themselves. Rudolf Hess attempted suicide on more than one occasion, they kept him alive for years and I say they were right. Ian Huntley has attempted suicide. Other prisoners have tried to kill Ian Huntley. Let him live with that fear, knowing how society and even other criminals think of him. Ian Brady wants to die and they are force feeding him to keep him alive. Why give him what he wants? In addition, he has yet to disclose were he buried some of his victims. I say when he gives that up and lets the families of his victims lay them to rest, why should society give him what he wants?
In addition, we don’t want to let terrorists become ‘martyrs,’ which they may well do. We could say, ‘let them make martyrs of them, they will still be dead.’ I think it is more hurtful and offensive to let this happen.