What happened in the supreme court case Atkins Vs Virginia?

In the Supreme Court case Atkins v. Virginia (2002), the Court ruled that executing individuals with intellectual disabilities violates the Eighth Amendment's prohibition against cruel and unusual punishment. The case involved Daryl Atkins, who had an IQ below 70 and was convicted of murder. The Court determined that a national consensus had emerged against the death penalty for individuals with intellectual disabilities, thereby establishing a constitutional protection for this group. The ruling emphasized the importance of considering individual circumstances and mental capacity in capital punishment cases.