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.
Amun
When Akhenaten died, the priests of Amun-Ra reasserted themselves. His name was struck from Egyptian records, all of his religious and governmental changes were undone, and the capital was returned to Thebes. The return to the previous capital and its patron deity was accomplished so swiftly that it seemed this almost monotheistic cult and its governmental reforms had never existed. Worship of Aten ceased and worship of Amun-Ra was restored. The priests of Amun even persuaded his young son, Tutankhaten, whose name meant "the living image of Aten"—and who later would become a pharaoh—to change his name to Tutankhamun, "the living image of Amun".