In order for justice to be done, people must receive the punishments they deserve. For some criminals, a sentence of life in prison does not fit the severity of their crime. At times, the only punishment that fits heinous crimes is death. For this reason, we should not abolish the death penalty. If we prevent the criminal justice system from giving people what they deserve, we stop it from administering justice. The death penalty is a necessary component of our criminal justice system because some people deserve it.
Although deservedness should certainly be a consideration, it is not the only factor that should decide a person's punishment. In some cases, the criminal justice system must give defendants mercy. As flawed human beings, we would be in trouble if we got what we deserved all the time. At certain points, everyone has received undeserved forgiveness, which means that we're all obligated to give others the same grace. We must extend criminals the same mercy we have received, and wish to receive, ourselves. For this reason, we should abolish the death penalty.
[P1] For justice to be done, people must receive a fitting punishment. [P2] In some cases, the only fitting punishment is death. [P3] For this reason, we should not abolish the death penalty.