Marcellus Williams, a 55-year-old Black man, is scheduled to be executed in Missouri on 24 September 2024. He was convicted by an almost all-white jury in 2001 of the 1998 murder of a white woman and sentenced to death. The primary evidence at trial was informant testimony provided by two individuals incentivized by reward money and the possibility of leniency on their own charges. None of the forensic evidence ties Marcellus Williams to the crime. Male DNA on the murder weapon that was not his was contaminated by officials, meaning it cannot be used to identify a possible perpetrator. We urge Missouri governor to grant clemency and commute Marcellus Williams’s death sentence.