Earlier investigations claimed to find unmarked graves, but further research revealed that the anomalies were disruptions in the soil, not necessarily bodies. Critiques of the archaeologist, Dr. Sarah Bullu, suggest confusion between alleged shallow graves and trenches dug for the school's septic system. The alleged child's tooth in a rib bone was found to be non-human, and there are no records of the supposed rib bone. Despite other reports, no human remains have been found at any alleged unmarked mass graves. The lack of coverage on this follow-up research may be due to embarrassment and denialist narratives.