Capital punishment is the lawful infliction of the death penalty and since ancient times this form of justice has been used to punish a wide variety of offenses. The Bible prescribes death for murder and many other crimes such as kidnapping and witchcraft. In the 1500's in England only the major felonies carried the death penalty. Some of these felonies are treason, murder, larceny, burglary, rape, and arson. In the 1800's however , parliament had enacted many new capital offenses, and hundreds of persons were being sentenced to death each year. In the United States prior to the civil war the death penalty was imposed on slaves for many crimes, but the penalty for others was less severe.
Capital punishment is always going to be questioned by the states. The United States doesn't like the death penalty because they say it's not a valid form of punishment. The states say a punishment that conflicts harm can hardly be good for us. The states don't want to kill a man who is already imprisoned. They say he's already being punished.
States don't keep all murderers in jail forever. Some of these criminals will get out and will probably start all over again. It's not that they have to kill, but they have a problem. These criminals are taking an innocent person's life and they get to live. They also get a place to live, free food and don't have to pay for anything.
Incarceration is not an adequate punishment for a murderer. Punishment is for people who are doing smaller crimes. These criminals do not deserve to live and need to be completely eliminated from society. A murderer will kill again because he has no feelings for anybody and doesn't care what happens. The law abiding citizen wants a death penalty, not just imprisonment for murderers.