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.
Kiya
Many Egyptologists have tried to produce an explanation for her prominence. Numerous scholarly discussions of Tutankhamun's parentage during the late twentieth century, and the early years of the twenty-first, have mentioned the hypothesis that Kiya was Tutankhamun's mother. If she had indeed borne a male heir to Akhenaten, this distinction might well merit unique honors. However, genetic studies of the Egyptian royal mummies, led by Zahi Hawass and Carsten Pusch, have now established that Tutankhamun's biological mother was KV35YL, the "Younger Lady" discovered in the mummy cache in the tomb of Amenhotep II.