Is cruel and unusual punishment against law?

Since the Bill of Rights was added to the United States Constitution in 1791, “cruel and unusual punishment” has been against the law in the United States. This means that even if a person commits a terrible crime, the Constitution says their punishment cannot be painful or cause suffering on purpose.
For More Information Please Refer:
https://simple.wikipedia.org/wiki/capital_punishment_in_the_united_states
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