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On June 18, 2024, the Virginia Court of Appeals granted Marvin Grimm Jr. a Petition for Writ of Actual Innocence, officially clearing him of a crime he had spent 45 years in prison for not committing. The ruling capped more than two decades of legal work by the Innocence Project and the law firm Arnold & Porter, and it exposed the compounded failures — a threatened confession and discredited forensic science — that had cost Grimm nearly half a century of his life.
The case began on November 22, 1975, when a three-year-old boy identified in court records as C.H. disappeared in Richmond, Virginia. Investigators moved quickly to Grimm as the focus of their inquiry. The pressure on law enforcement to solve a crime involving a young child was intense, and that pressure channeled into what wrongful conviction researchers now recognize as tunnel vision — a narrowing of focus onto one suspect at the cost of a fuller investigation.
At trial, the prosecution built its case on two pillars. The first was testimony from Mary Jane Burton, a senior forensic analyst at Virginia's state crime lab. Burton told the jury that hairs found on the floor of Grimm's car and on a child's sock inside the vehicle were "consistent" with C.H.'s hair. The second was a confession Grimm had given to investigators after his arrest.
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Hair analysis evidence at the 1976 trial — three hairs on the floor of Grimm's car and one hair on a child's sock — was described as 'consistent with' C.H.'s hair using a methodology later recognized as scientifically unreliable.[1, 2]
Check the sourcesInnocence Project ↗The New York Times ↗
DNA testing excluded Marvin Leon Grimm Jr. as the source of biological evidence found in C.H.'s throat and excluded C.H. as the source of hairs found on a peacoat recovered from Grimm.[1, 3]
Check the sourcesInnocence Project ↗Innocence Project ↗
Grimm's confession was obtained at approximately 2:20 a.m. after he had been kept awake for more than 24 hours and was elicited through suggestive prompting that mirrored police officers' predetermined theory of the crime.[1]
Check the sourcesInnocence Project ↗
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