Tell that to the guards, and to other prisoners. Solitary confinement might work, but after a certain amount of time, Prison officials will put the killer in the general population. You only get Solitary/Protection if you're considered to be likely to die in GP (rapists, child molesters, traitors, etc). How many killers are in for multiple murders? How many of their 2nd (or 3rd +) murders are committed behind the walls? Further, there are too many judges and parole boards out there who will release killers because they feel they've learned their lesson. And why not? The killers don't live in their neighborhoods. Besides, they don't want people to they they have no "feelings".
Nowhere in our Constitution or our laws does it state that the job of the government is to exact revenge for private citizens.
What is prison? What are fines? These are forms of "revenge". But this isn't revenge. It's punishment. When you commit the ultimate crime, you face the ultimate penalty. And in this case, the confinement is not the penalty. That's the way station to his real punishment.
Our death sentencing system is racist.
Most of those on death row now are white.
If you wish to be shocked even more, you can read "Devil's Knot" by Mara Leveritt
So all this is just an advertisement to sell a book which already has an agenda. A few anecdotes and examples of questionable cases (that's why we have appeal courts) does not mean all cases are questionable, and therefore none should be punished for their crimes.
You can't un-kill a person.
Tell that to the murderers. Besides, once we do put a murderer to death, he never kills again.
Virginia and West Virginia were named for Queen Elizabeth I. Dubbed "the virgin Queen" by Sir Walter Raleigh in 1584.
So in fact, there is only 1 virgin. And she wasn't all that hot.