It can be cruel and unusual and in my personal opinion state sanctioned murder whether it's legal or not is just plain wrong.
How is it right for the law to say that it's illegal for someone to murder someone and then arrest and hold captive that person and then murder that person years down the road for doing the same thing that they're doing?
I'm not saying that the crime shouldn't go unpunished and that the murderer shouldn't be or feel tortured while in prison since if they did murder someone they likely tortured that person.
But living in prison for the rest of your life in a prison cell is enough punishment and you're not killing someone for killing someone.
I could see it as torture for a prisoner to be in a prison cell and know your death date.
Imagine you're sentenced to death and then taken to a prison where you'll sit in a prison cell with not much else to do for at least 23 hours of the day but twiddle your fingers and sleep or read a book.
And then eventually be taken out of that prison cell on that date and knowing you'll be dying in just around an hour or so?
That would be pure torture and it's just wrong to murder someone for murder someone.
If you're gonna punish someone for murdering someone then it's not right for you to do the same.
Putting someone to death by lethal injection costs way more money for taxpayers than it does to just keep someone in prison for life.