You have to ask if it's ethical or not to kill someone if he/she is a murderer. I've always said it's obviously hypocritical that you say it's wrong to kill someone but we are going to kill you.
I'm losing faith in the British judicial system, due to overcrowding criminals are getting off lightly, what I'm trying to say is life should mean life for murder, not let out at all. Usually rapists rape again if they are let out so killing them would help overcrowding, sorry not really, just let out the petty criminals and imprison the dangerous ones. I digress, it's a tough call one where I would imagine even the victim would sometimes want the death penalty. One things for sure, they shouldn't be let out period, the main objective is the safety of the public because it's been proven 9 times out of 10 they commit the same offense again if released.
If you do bring back the death penalty are you only saying it's for the ones that we are 100 percent sure about because the last person who was hanged they were sure about and turned out to be innocent. So are you saying that forensics today are sure 100 percent now and no room for error? But your question is really hypothetical.
From what I've seen victims and their families mostly want the perp locked up in jail because killing them involves no prolonged suffering like a lengthy or life sentence does where they'd get beaten up and life is made hell if they are rapists, I could be wrong as this was a long time ago but that is mostly what the victims and their families wanted, they wanted the criminal to suffer for a long time, it gave them gratification where as the death penalty made them feel no justice has been served because the criminal is not suffering, some would say he/she got off lightly.
Which brings the question, which is more just, prison or death, well I'm all for letting them rot in jail, not because it's wrong to kill them because I would understand some people wanting to do this but I agree with the others, there is no pain and suffering in death, they feel nothing, they are going to die eventually, why not let them suffer and live in hell to the point they wish they were dead? That's justice.
Have a pleasant afternoon Mark!