Capital Punishment is meant to flush society's vermin down the drain, not to deter crime. Even if there were a law saying that police could shoot a murderer immediately upon capture, there will still be murderers like Muhammad.
Now, another possibility for these two vermin would be life without possibility of parole in a super maximum prison where they are under lock and key five days a week alone in their cells with a perpetually lit bulb in their rooms. No contact at all with other prisoners, no contact with guards, except in very, very rare occassions. The knowledge that they are going to live the rest of their natural lives that way will hopefully drive them nuts, especially Malvo.
Now, another possibility for these two vermin would be life without possibility of parole in a super maximum prison where they are under lock and key five days a week alone in their cells with a perpetually lit bulb in their rooms. No contact at all with other prisoners, no contact with guards, except in very, very rare occassions. The knowledge that they are going to live the rest of their natural lives that way will hopefully drive them nuts, especially Malvo.