
DPI Database: Innocence Database
A Death Penalty Information Center database of every death-row exoneration since 1972. For every 8 people executed in the United States, one other person has been exonerated from death row.

DPI Analysis: What Lies Behind 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 DPI 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
Oct 07, 2025
New Evidence Revealed in “Dateline” Podcast Points to Judicial Misconduct in Robert Roberson’s Case Just Days Ahead of Execution
October 9, 2025 UPDATE: On October 9, 2025, just a week before his scheduled execution, the Texas Court of Criminal Appeals (CCA) granted Robert Roberson a stay of execution and remanded his case to the district court for further consideration of his request for relief based upon relief offered in a similar case, Ex parte Roark. Like Mr. Roberson’s case, Ex parte Roark**, also involved a conviction based the now discredited“Shaken…
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Sep 30, 2025
DPI Podcast 12:01 The Death Penalty in Context: Katherine Judson of the Center for Integrity in Forensic Sciences Speaks on Flawed Forensics and Robert Roberson
In the September 2025 episode of 12:01: The Death Penalty in Context, DPI’s managing director Anne Holsinger interviews Shaken Baby Syndrome (SBS) expert Katherine Judson. Ms. Judson is Executive Director of the Center for Integrity in Forensic Sciences and former Shaken Baby Syndrome/Abusive Head Trauma Litigation Coordinator for the Wisconsin Innocence Project. In the episode, Ms. Judson provides the history behind Shaken Baby Syndrome, and why it is now known by experts as“junk…
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Sep 23, 2025
New Book of Interest: SHAKEN: The Rush to Execute an Innocent Man by John Grisham
Acclaimed novelist and former criminal defense lawyer John Grisham is set to release a new book titled SHAKEN: The Rush to Execute an Innocent Man on June 9th, 2026. The book is a non-fiction account of the contentious case of Robert Roberson, the Texas man who has been on death row for over twenty years and is now facing execution in Texas in October 2025, despite strong evidence of his innocence. > “Robert Roberson is innocent because the evidence developed in recent…
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Sep 09, 2025
Ohio Appeals Court Rules Prosecutors Cannot Use Witness Testimony in Retrial of Elwood Jones
In late August 2025, the First District Court of Appeals of Ohio ruled that Hamilton County prosecutors cannot use prior witness testimony in their retrial of Elwood Jones, who was on Ohio’s death row for 27 years until he was granted a new trial in December 2022. Mr. Jones was convicted and sentenced to death for the murder of Rhoda Nathan in a Blue Ash, Ohio, hotel in 1994, despite consistently maintaining his innocence. In 2022, Hamilton County Common Pleas Court…
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Aug 19, 2025
Former Illinois Death-Sentenced Prisoner Robert Melock’s Charges Dismissed, Court Acknowledges Innocence
After spending more than three decades behind bars for a crime he did not commit, Robert Melock was issued a Certificate of Innocence (COI), with a court formally clearing his name and ordering his record expunged. On April 21, 2025, the Circuit Court of the 19th Judicial Circuit issued Mr. Melock the certificate following his December 2023 release from prison after 34 years of incarceration. His case is emblematic of the many problems known to result in wrongful death…
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