Tutankhamun's mummy
Detective Michael R. King and FBI profiler Gregory M. Cooper came together with an actual Egyptologist to form their own theory which was that Tutankhamun was murdered. With the use of forensic evidence and their extensive backgrounds in criminology, they came to the conclusion that he was likely murdered by one of his closest advisors, Ay. Ay did succeed Tutankhamun on the throne, so they used that as the motivation for the murder.
Neferneferuaten
This development implies that either Neferneferuaten was deposed in a struggle for power, possibly deprived of a royal burial—and buried as a queen—or that she was buried with a different set of king's funerary equipment—possibly Akhenaten's own funerary equipment—by Tutankhamun's officials since Tutankhamun succeeded her as king.