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Robert Roberson with daughter Nikki. Courtesy of the Roberson family.
On February 19, 2025, in new filings, Robert Roberson returned to the Texas Court of Criminal Appeals (CCA) with a request for relief, presenting substantial new evidence that supports his claim of actual innocence. Mr. Roberson’s latest habeas application incorporates new expert opinions and references scientific advancements that have emerged since October 2024, when the CCA acknowledged in a similar case that the scientific foundation for “Shaken Baby” Syndrome (SBS) convictions lack reliability. According to his new application, these findings demonstrate two critical points: rational jurors would not find Mr. Roberson guilty of capital murder today, and his conviction was materially influenced by scientific and medical evidence now considered outdated and unreliable.
In 2002, Mr. Roberson’s 2‑year-old daughter Nikki was sick with high fever and undiagnosed pneumonia and had been prescribed medications inappropriate for her age (Phenergan and Codeine) before suffering a short fall from bed. When he brought Nikki to the emergency room, hospital staff misinterpreted Mr. Roberson’s flat mannerisms, caused by autism, as emotional detachment, leading police and prosecutors to suspect him of playing a role in Nikki’s eventual death. Mr. Roberson was convicted and sentenced to death based on the now-discredited SBS hypothesis. Counsel for Mr. Roberson points to the CCA’s decision in Ex Parte Roark, where the Court overturned a murder conviction based on the SBS testimony of the same expert who testified against Mr. Roberson. In Roark, the Court ruled: “We find that scientific knowledge has evolved regarding SBS and its application in Applicant’s case. In addition, we find that given further study, the experts would have given a different opinion on several issues at a trial today — some already have. The admissible scientific testimony at trial today would likely justify an acquittal.”
“[T]he 2002 autopsy performed on Nikki Curtis [Mr. Roberson’s daughter] is not reliable. []”
At the time of both Mr. Roark and Mr. Roberson’s convictions, there was consensus among the medical community that whenever a triad of symptoms appeared in a child, that child must have been violently shaken or struck against a blunt surface. The medical community generally believed that short falls or natural illness could not result in this triad of symptoms, but as the CCA acknowledged in Roark, that belief no longer holds true. The common medical understanding at the time of Nikki’s death also held that brain damage from violent shaking would result in immediate death, wrongly assuming the last person with the child must be responsible for their death. Evidence-based science has dismantled each of the SBS premises that were presented as medical facts at Mr. Roberson’s trial, a development officially recognized by the CCA in the Roark case. Counsel for Mr. Roberson holds that these “cases are indistinguishable in all material aspects,” and like Mr. Roark, Mr. Roberson’s conviction should be overturned.
Mr. Roberson’s latest filing also includes a new affidavit for Dr. Michael Laposata, a pathologist with more than four decades of expertise in coagulation and bleeding disorders. Dr. Laposata, who reviewed Nikki’s medical records, autopsy, and other available information determined that based on available records, Nikki suffered from Disseminated Intravascular Coagulation (DIC), a blood clotting disorder than is known to be commonly caused by serious illnesses, such as pneumonia. According to Dr. Laposata, “all of the findings in Nikki’s case associated with bleeding are clearly reflective of the presence of DIC.” He also explained that the bleeding in Nikki’s brain that the medical examiner attributed to “multiple impact” sites, were, in actuality, because of DIC: “The most plausible explanation for Nikki Curtis’ bleeding and bruising is the development of DIC starting months before the events which took her life.” Dr. Laposata reviewed the reports of three other medical experts and found their conclusions to be wholly consistent with his conclusions. The February 19th filings also include a joint statement of 10 pathologists who conclude that “the 2002 autopsy performed on Nikki Curtis is not reliable.”
Mr. Roberson was scheduled to be executed in October 2024; however, the Texas Supreme Court ultimately stayed the execution after state lawmakers subpoenaed Mr. Roberson to testify on a date after his scheduled execution about the state’s changed-science law and his case. Mr. Roberson was not able to testify, as the Office of the Attorney General intervened to prevent the Texas Department of Criminal Justice’s compliance with the subpoena. Without hearing from Mr. Roberson, the House Committee on Criminal Jurisprudence released in an interim report, which is included in Mr. Roberson’s new filing. The Committee found that Mr. Roberson’s case “highlighted not just an individual injustice, but the unfulfilled promise of what was intended to be a pioneering Texas law.”
According to the National Registry of Exonerations, at least 40 parents and caregivers across 20 states and the military have been exonerated since 1992 after being wrongfully convicted based on the discredited “Shaken Baby” hypothesis.
Citing New Expert Reports And Other Evidence Supporting His Innocence, Robert Roberson Again Asks Texas Court of Criminal Appeals To Overturn His Wrongful “Shaken Baby” Conviction, Innocence Project, February 19, 2025.
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