In that case, plants and animals are "living things." Do you feel that it is wrong to end a flowers life, or a cat? Should killing a cat be legal? See, the difference is that humans have a soul, and plants and animals do not. It is murder to kill a being with a soul. Now, I do not believe that the fetus has a soul, and is not fully human until it takes its first breath, which is when it is given a soul. This is based on the Bible.

Also too, you have to realize that the death penalty actually saves more lives than it takes away, because the death penalty discourages future murderers. For example, if we lived in a world without the death penalty, people would have no fear of killing someone. When people see that there is a punishment that takes place if they murder someone, than they will be 90% less likely to go out and murder. The death penalty actually saves lives.

It all depends on your view of morality. Personally I believe in the concept of Justice, which is a standard that is set by God based on his morality. I don't believe that anyone should be punished for something they didn't do; however my belief is that the death penalty does justice to those who have committed murder. Just as a thief should pay back what they stole, someone who steals another person's life should pay for it with their own.