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.
Egyptian Journeys with Dan Cruickshank
A plague sweeps the land, taking Akhnaten's wife and children, and the Pharaoh is held responsible as social order begins to fall apart. Akhnaten's death, possibly at the hands of his own courtiers, leads to his successor Tutankhamun abandoning Amarna and restoring the old gods. All trace of Akhnaten was buried, ironically preserving it for modern archaeologist.