And do those who have personal beliefs FOR the imposition of the death penalty have any non-convoluted arguments?

Here's my argument:  The death penalty should be a valid sentence, but it should never be carried out.  No one should be allowed to kill another human being against that person's will, when that person is already under lockdown.  To me, "Though shalt not kill" overrides any imposition of death for the violation of even this Law itself.