Penry v. Lynaugh

In this case, we must decide whether petitioner, Johnny Paul Penry, was sentenced to death in violation of the Eighth Amendment because the jury was not instructed that it could consider and give effect to his mitigating evidence in imposing its sentence. We must also decide whether the Eighth Amendment categorically prohibits Penry’s execution because he is mentally retarded.

H-I

On the morning of October 25, 1979, Pamela Carpenter was brutally raped, beaten, and stabbed with a pair of scissors in her home in Livingston, Texas. She died a few hours later in the course of emergency treatment.…