Yes, the death penalty should be used as a tool to punish those who deserve it. Over the years, mankind has committed countless extremely cruel crimes. These crimes range from "innocent" rape to torture and mutilation of the victim. People like Richard Trenton Chase. He is a serial killer, known as the vampire of Sacramento, because he not only kills people, but also drinks the blood of victims and eats their flesh, sometimes even before killing them. This is not a fantasy world, where only adult and despicable men are the targets, but more commonly, children and women are the main targets of these evils. Understandably, even Richard Trenton Chase's cellmate wanted him to kill himself. Can you imagine a person shooting, raping a three-month-old pregnant woman and bathing in her blood, while the pregnant woman still breathes the same air as you? Will you, your wife and children feel safe when you know that this person is alive and healthy?
Don't think that this situation is rare, and don't think that no one else will do such a terrible thing. A man named Jeffrey Dahmer, a man who can lie to your face and manipulate and dismember your body with the same expression. Who would want such a danger to continue? Or do some people really think that such a man can change? He is a cold, scheming and dangerous killer.
The death penalty is a part of the judicial system. If you can't kill a person for his evil deeds, what makes you think he won't do it again? Or you just want to take part of your tax to take care of him for the rest of his life. To keep him safe, take a bath, eat, and have fun? In order to maintain our social security and judicial system, which is still a system that most people will not try to challenge, the death penalty must exist.