My post is going to be about my views on the moral reasoning on why I believe that the death penalty is acceptable, I'm not going to go into the risk of their being a mistake, problems with this and that court, bla-de-bla-de-derp.
I think that if someone had planned beforehand and murdered someone or multiple people intentionally, they deserve the death penalty. People are punished for taking away the rights of others by proving to be a risk to their safety or inhibiting their actions. This spectrum includes torture since you hold someone and present permanent risks to his/her well-being, money-related crimes in which you could cause serious financial risks to one or more people for the rest of their lives, and even killing someone in which you take away their right to live. To prove that someone does not deserve to live, or rather, does not have the right to live anymore due to his/her actions is the ultimate punishment. Life is a gift, so taking it away is the ultimate punishment. Life in prison is still existing, which is more than can be said for many victims. Taking away that is taking away all of their rights as a person, and that is why it is the ultimate punishment: you are losing your rights because of you restricted or destroyed the rights of others.