Jimmie Christian Duncan has spent over 26 years on death row at Louisiana’s Angola prison for the rape and murder of his girlfriend’s toddler daughter—a crime he has always maintained never happened. On Thursday, a Louisiana judge dismissed his conviction, vindicating Duncan’s fierce, decades-long effort to prove his innocence.

In his order vacating the conviction, District Court Judge Alvin Sharp wrote that Duncan had successfully demonstrated his claim of “factual innocence” based on new evidence that was not available at the original trial. His conviction relied on a so-called bite mark analysis, a method that’s since been discredited and is widely regarded as ‘junk science’, that was conducted by a now-infamous duo, doctor Steven Hayne and dentist Michael West. As I reported in Bolts and Mother Jones last month, Hayne and West have since been found responsible for a host of other wrongful convictions; Duncan is the last man left on death row who had been convicted on the basis of their work.