DPI Database: Innocence Database
A Death Penalty Information Center database of every death-row exoneration since 1972.
DPI Analysis: Causes of Wrongful Convictions
The Most Common Causes of Wrongful Death Penalty Convictions: Official Misconduct and Perjury or False Accusation
Overview
Given the fallibility of human judgment, there has always been the danger that an execution could result in the killing of an innocent person. Nevertheless, when the U.S. Supreme Court held the administration of the death penalty to be unconstitutional in 1972, there was barely any mention of the issue of innocence in the nine opinions issued. Although mistakes were surely made in the past, the assumption prevailed that such cases were few and far between. Almost everyone on death row was surely guilty.
However, as federal courts began to more thoroughly review whether state criminal defendants were afforded their guaranteed rights to due process, errors and official misconduct began to regularly appear, requiring retrials. When defendants were now afforded more experienced counsel, with fairly selected juries, and were granted access to scientific testing, some were acquitted and released. Since 1973, 200 former death-row prisoners have been exonerated of all charges related to the wrongful convictions that had put them on death row.
At Issue
It is now clear that innocent defendants will be convicted and sentenced to death with some regularity as long as the death penalty exists. It is unlikely that the appeals process—which is mainly focused on legal errors and not on factual determinations—will catch all the mistakes. Reforms have been begrudgingly implemented, increasing both the costs and the time that the death penalty consumes, but have not been sufficient to overcome human error. The popularity and use of capital punishment have rapidly declined as the innocence issue has gained attention. The remaining question is how many innocent lives are worth sacrificing to preserve this punishment.
What DPIC Offers
DPI has led the way in highlighting the issue of innocence. Its list of exonerated individuals is presented in a searchable database, with links to more complete descriptions of each case. DPI has issued a series of reports on this issue, collecting the latest information on why so many mistakes occur. It also follows the related questions of whether innocent individuals have already been executed and whether some defendants are in fact innocent, despite not being completely exonerated in the eyes of the law.
News & Developments
News
Nov 20, 2024
Texas Supreme Court Rules that a New Execution Date Can be Set for Robert Roberson
In a November 15, 2024, ruling, the Texas Supreme Court cleared the way for the state to reschedule the execution of Robert Roberson, despite compelling evidence of his innocence and widespread support for a new trial. Mr. Roberson was scheduled to be executed October 17, but on October 16 the Texas House Committee on Criminal Jurisprudence issued a subpoena for Mr. Roberson to testify on a day after his execution was to occur. A district court temporarily halted the execution so that…
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Nov 15, 2024
Trial Judge Declares Melissa Lucio to be “Actually Innocent,” Recommends Texas CCA Overturn Conviction and Death Sentence
Texas death-sentenced prisoner Melissa Lucio is “actually innocent; she did not kill her [two-year-old] daughter,” explained Judge Arturo Nelson in his October 16th decision, which was made public on November 14, 2024. Judge Nelson’s Findings of Fact and Conclusions of Law now go to the Texas Court of Criminal Appeals (TCCA), which will make the final decision about whether to overturn Ms. Lucio’s conviction and 2008 death sentence. This decision marks the latest dramatic development for Ms.
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Oct 28, 2024
“Simply Untrue”: Lawmakers Refute Unprecedented Attack by Texas Attorney General in Robert Roberson’s Case
On October 23, 2024, Texas Attorney General Ken Paxton released a press statement, the original autopsy report, and other case records in an effort to “set the record straight” and “correct falsehoods” that he accused state lawmakers of making about Robert Roberson (pictured). In this unprecedented attack, AG Paxton also characterized the defense efforts as “eleventh-hour, one-sided, extrajudicial stunts that attempt to obscure facts and rewrite his past.” Texas Governor Greg Abbott has also…
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Oct 23, 2024
The Limitations of DNA Evidence in Innocence Cases
Death-sentenced prisoners with credible evidence of innocence have gained significant attention this month with the execution of Marcellus Williams in Missouri, the near-execution of Robert Roberson in Texas, and the U.S. Supreme Court arguments in Glossip v. Oklahoma. There is a common misconception that DNA evidence is widely available in all cases and central to exonerations, but the reality is that DNA exonerations in death penalty cases are relatively rare. DPI has identified 34…
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Oct 21, 2024
Testimony at Texas Legislature Does Not Include Robert Roberson But Witnesses Confirm Serious Concerns about the Possible Execution of an Innocent Man
The Texas House Committee on Criminal Jurisprudence heard testimony on Monday October 21, 2024 from novelist John Grisham, talk show host “Dr. Phil” McGraw, but not its expected star witness, Robert Roberson, whose subpoenaed testimony resulted in a dramatic last-minute stay of execution on October 17th from the Texas Supreme Court. Legislators said they could not reach an agreement with the Office of the Texas Attorney General to facilitate Mr. Roberson’s in-person testimony, and Committee…
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