Gregg v. Georgia, Proffitt v. Florida, Jurek v. Texas, Woodson v. North Carolina, and Roberts v. Louisiana, 428 U.S. 153 (1976), is a landmark decision of the U.S. Supreme Court. It reaffirmed the Court's acceptance of the use of the death penalty in the United States, upholding, in particular, the death sentence imposed on Troy Leon Gregg. The set of cases is referred to by a leading scholar as the July 2 Cases, and elsewhere referred to by the lead case Gregg. The court set forth the two main features that capital sentencing procedures must employ in order to comply with the Eighth Amendment ban on "cruel and unusual punishments". The decision essentially ended the de facto moratorium on the death penalty imposed by the Court in its 1972 decision in Furman v. Georgia 408 U.S. 238 (1972).
Roper v. Simmons, 543 U.S. 551 (2005), is a landmark decision by the Supreme Court of the United States in which the Court held that it is unconstitutional to impose capital punishment for crimes committed while under the age of 18. The 5–4 decision overruled Stanford v. Kentucky, in which the court had upheld execution of offenders at or above age 16, and overturned statutes in 25 states.
Atkins v. Virginia, 536 U.S. 304 (2002), is a case in which the Supreme Court of the United States ruled 6–3 that executing people with intellectual disabilities violates the Eighth Amendment's ban on cruel and unusual punishments, but states can define who has an intellectual disability. At the time Atkins was decided, just 18 of the 38 death penalty states exempted mentally disabled offenders from the death penalty.
The Supreme Court of the United States handed down six per curiam opinions during its 2004 term, which began October 4, 2004 and concluded October 3, 2005.
Johnny Paul Penry is a Texas prisoner serving three consecutive sentences of life imprisonment without parole for rape and murder. He was on death row between 1980 and 2008, and his case generated discussion about the appropriateness of the death penalty for offenders who are thought to be intellectually disabled.
Enmund v. Florida, 458 U.S. 782 (1982), is a United States Supreme Court case. It was a 5–4 decision in which the United States Supreme Court applied its capital proportionality principle, to set aside the death penalty for the driver of a getaway car, in a robbery-murder of an elderly Floridian couple. The court ruled that the imposition of the death penalty under the felony murder rule when the defendant did not intentionally kill the victim constituted cruel and unusual punishment under the Eighth Amendment of the United States constitution.
Stanford v. Kentucky, 492 U.S. 361 (1989), was a United States Supreme Court case that sanctioned the imposition of the death penalty on offenders who were at least 16 years of age at the time of the crime. This decision came one year after Thompson v. Oklahoma, in which the Court had held that a 15-year-old offender could not be executed because to do so would constitute cruel and unusual punishment. In 2003, the Governor of Kentucky Paul E. Patton commuted the death sentence of Kevin Stanford, an action followed by the Supreme Court two years later in Roper v. Simmons overruling Stanford and holding that all juvenile offenders are exempt from the death penalty.
Penry v. Lynaugh, 492 U.S. 302 (1989), was a United States Supreme Court case that sanctioned the death penalty for mentally disabled offenders because the Court determined executing the mentally disabled was not "cruel and unusual punishment" under the Eighth Amendment. However, because Texas law did not allow the jury to give adequate consideration as a mitigating factor to Johnny Paul Penry's intellectual disability at the sentencing phase of his murder trial, the Court remanded the case for further proceedings. Eventually, Penry was retried for capital murder, again sentenced to death, and again the Supreme Court ruled, in Penry v. Johnson, that the jury was not able to adequately consider Penry's intellectual disability as a mitigating factor at the sentencing phase of the trial. Ultimately, Penry was spared the death penalty because of the Supreme Court's ruling in Atkins v. Virginia, which, while not directly overruling the holding in "Penry I", did give considerable negative treatment to Penry on the basis that the Eighth Amendment allowed execution of mentally disabled people.
Ford v. Wainwright, 477 U.S. 399 (1986), was a landmark U.S. Supreme Court case that upheld the common law rule that the insane cannot be executed; therefore the petitioner is entitled to a competency evaluation and to an evidentiary hearing in court on the question of their competency to be executed.
In criminal law, a mitigating factor, also known as an extenuating circumstance, is any information or evidence presented to the court regarding the defendant or the circumstances of the crime that might result in reduced charges or a lesser sentence. Unlike a legal defense, the presentation of mitigating factors will not result in the acquittal of a defendant. The opposite of a mitigating factor is an aggravating factor.
Bigby v. Dretke 402 F.3d 551, the U.S. Court of Appeals for the Fifth Circuit heard a case appealed from the United States District Court for the Northern District of Texas on the issue of the instructions given to a jury in death penalty sentencing. The decision took into account the recent United States Supreme Court decisions concerning the relevance of mitigating evidence in sentencing, as in Penry v. Lynaugh.
The Capital Jury Project (CJP) is a consortium of university-based research studies on the decision-making of jurors in death penalty cases in the United States. It was founded in 1991 and is supported by the National Science Foundation (NSF). The goal of the CJP is to determine whether jurors' sentencing decisions conform to the constitution and do not reflect the arbitrary decisions the United States Supreme Court found when it ruled the death penalty unconstitutional in Furman v. Georgia. That 1972 Supreme Court decision eliminated the death penalty, which was not reinstated until Gregg v. Georgia in 1976.
Tennard v. Dretke, 542 U.S. 274 (2004), was a United States Supreme Court case in which the court was asked whether evidence of the defendant's low IQ in a death penalty trial had been adequately presented to the jury for full consideration in the penalty phase of his trial. The Supreme Court held that not considering a defendant's low IQ would breach his Eighth Amendment rights and constitute a cruel and unusual punishment.
Smith v. Texas, 550 U.S. 297 (2007), was a United States Supreme Court case about a challenge to a Texas death penalty court procedure. Justice Anthony Kennedy wrote the opinion of the Court, holding 5-4 that the Texas procedure was improper. Justice Samuel Alito wrote a dissent.
The Supreme Court of the United States handed down nineteen per curiam opinions during its 2009 term, which began on October 5, 2009, and concluded October 3, 2010.
Shafer v. South Carolina, 532 U.S. 36 (2001), was a United States Supreme Court case decided in 2001. The case concerned the ability of a defendant to tell the jury that, absent a penalty of death, a penalty of life imprisonment would not permit early release of a prisoner on parole. While the question had been decided in the case of Simmons v. South Carolina, this case dealt with the extent of the ruling.
The United States Constitution contains several provisions related to criminal sentencing.
Kansas v. Carr, 577 U.S. ___ (2016), was a case in which the Supreme Court of the United States clarified several procedures for sentencing defendants in capital cases. Specifically, the Court held that judges are not required to affirmatively instruct juries about the burden of proof for establishing mitigating evidence, and that joint trials of capital defendants "are often preferable when the joined defendants’ criminal conduct arises out of a single chain of events". This case included the last majority opinion written by Justice Antonin Scalia before his death in February 2016.
Bell v. Cone, 535 U.S. 685 (2002), was a Supreme Court of the United States case that upheld a death sentence despite the defendant's argument that he should not be sentenced to death because he was suffering from drug-induced psychosis when he committed the crimes. Cone also argued that he was denied effective assistance of counsel because his attorney failed to present sufficient mitigating evidence during the sentencing phase of his trial and that his attorney inappropriately waived his final argument during the sentencing phase. In an 8–1 opinion written by Chief Justice William Rehnquist, the United States Supreme Court denied Cone's petition for a writ of habeas corpus. The Court held that the actions taken by Cone's attorney during the sentencing phase were "tactical decisions" and that the state courts that denied Cone's appeals did not unreasonably apply clearly established law. Justice John Paul Stevens wrote a dissenting opinion in which he argued that Cone was denied effective assistance of counsel because his attorney failed to "subject the prosecution's case to meaningful adversarial testing."
Cone v. Bell, 556 U.S. 449 (2009), was a case in which the United States Supreme Court held that a defendant was entitled to a hearing to determine whether prosecutors in his 1982 death penalty trial violated his right to due process by withholding exculpatory evidence. The defendant, Gary Cone, filed a petition for postconviction relief from a 1982 death sentence in which he argued that prosecutors violated his rights to due process under the Fourteenth Amendment by withholding police reports and witness statements that potentially could have shown that his drug addiction affected his behavior. In an opinion written by Justice John Paul Stevens, the Supreme Court held that Cone was entitled to a hearing to determine whether the prosecution's failure to disclose exculpatory evidence violated Cone's right to due process; the Court noted that "the quantity and the quality of the suppressed evidence lends support to Cone’s position at trial that he habitually used excessive amounts of drugs, that his addiction affected his behavior during his crime spree". In 2016, Gary Cone died from natural causes while still sitting on Tennessee's death row.
