In the case of the first, the victim is irrelevant to the reason for opposing the death penalty. *The concept is that the government simply should not be killing people outside of war, that it is morally wrong. *If it is morally wrong, then justice, which should be the goal of a judicial system, is not served by killing some one. *While you can feel for the victim of the crime, you cannot undo the crime by killing any one. *As far as the criminal, it has nothing to do with sympathy for them. *If for example it is wrong to steal, then it is still wrong to steal from a mean, nasty person. *If it is wrong for the government to sanction killing in the name of justice, then this is true whether the person is nice or nasty. *Morality does not depend on who you are acting towards, but on how you act.