Convicts Sentenced to Life for Grave Robbery in Illinois, Thanks to Unlikely Forensic Evidence
In a bizarre twist of fate, a clump of moss has played a crucial role in convicting four workers who dug up over 100 bodies from the Burr Oak cemetery in Alsip, Illinois, nearly two decades ago.
In a bizarre twist of fate, a clump of moss has played a crucial role in convicting four workers who dug up over 100 bodies from the Burr Oak cemetery in Alsip, Illinois, nearly two decades ago. The scandal, which shook the nation, saw the workers resell the burial plots for profit, desecrating the final resting places of prominent African Americans, including Emmett Till and the blues singer Dinah Washington.
According to Dr. Matt von Konrat, head of botanical collections at the Field Museum in Chicago, the FBI reached out to him in 2009 with a peculiar request. They asked if he knew about moss and brought the evidence to the museum. An investigation by local police had discovered human remains buried under inches of earth at the cemetery, and forensic specialists had spotted various plants, including a piece of moss about the size of a fingertip.
The scientists at the Field Museum examined the moss under a microscope and compared it with dried specimens in the museum's collection, identifying it as common pocket moss, or Fissidens taxifolius. A survey at the cemetery found that the species did not grow where the corpses were discovered, but was abundant in a lightly shaded area beneath some trees where police suspected the bodies had been dug up. The moss had evidently been moved with the bodies.
But what made the moss evidence even more compelling was its unique biology. Dr. von Konrat explained that mosses can have an active metabolism even when they appear dead, gradually dying off over time. By bathing the moss in light and measuring its absorption and re-emission, the scientists were able to determine that the moss had been buried for less than 12 months.
This finding was crucial, as the accused workers had argued that the crime took place before their employment, years and years earlier. However, the moss evidence contradicted this claim, providing a timeline of the crime that was instrumental in securing the convictions.
Doug Seccombe, a former FBI agent who worked on the case and a co-author of the study, praised the plant material from the cemetery as "key" to securing the convictions. Dr. von Konrat, who has worked on numerous botanical projects, was surprised to find himself working on a criminal case, but now wants to highlight the potential of mosses in forensic investigations.
The study, published in Forensic Sciences Research, underscores the importance of natural history collections in providing evidence for investigations. As Dr. von Konrat noted, "We never know how we might apply them in the future." The use of moss as forensic evidence in this case is a testament to the innovative ways in which scientists can contribute to justice.
The four workers convicted of grave robbery were sentenced to life in prison, bringing closure to the families of the victims and a sense of justice to the community. As the nation reflects on this tragic event, it is a reminder of the importance of respecting the dead and the power of science in uncovering the truth.
Looking ahead, the use of moss as forensic evidence may become more prevalent in future investigations. Dr. von Konrat's work on this case has opened up new avenues for research, and his team is already exploring other ways in which mosses can be used to aid in crime solving. As the field of forensic science continues to evolve, it is clear that even the most unlikely of suspects – in this case, a clump of moss – can play a crucial role in bringing justice to those who have been wronged.
