I wouldn't consider a trial where a person's life hangs in the balance to be wasteful and we, as a society, should be willing to foot the bill to make certain that he receives a just trial. Most people who commit murder don't consider the consequences whether that be the death penalty or life in prison. The penalty, for most murderers, is inconsequential. If someone is intent on murder, the penalty is usually the last thing they consider.
I am also fairly sure the death penalty is not a crime deterent. Individuals who commit a crime that qualifies for death probably don't give much thought to consequences. I am sure death penalty cases cost significantly more money to adjudicate - they are usually high profile cases.
I agree, it doesn't deter the criminals from being criminals, but it sure as heck makes sure they don't do it again.
Cannot argue with that. I also wonder how much money the death penalty saves the state in judicial cost using it as leverage in plea deals.
I think the costs involved are because we have an inefficient justice system which is in dire need of reform.