Our attempts at improving justice here must be at the level of the process of adjudication making any determination of guilt more trustworthy. Our case is not for every one's life or every form of life. Pro-lifer's are against the unjust taking of innocent human life, particularly the life of the unborn child. We also have a right to freedom, but it can be properly overridden with incarceration when certain conditions are met. An unborn child has committed no crime that forfeits its life.
Capital punishment is cruel and unusual.
It's not cruel and unusual, but rather the exact punishment that fits the crime. This is an appeal to the language of the Bill of Rights, but the ones who wrote those words believed in capital punishment. If one wants to redefine the term for modern times, then he cannot argue from the Bill of Rights itself, because that has the old definition. It always deters the offender. Dead people don't commit more crimes.