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.
Nine bows
Pharaoh-King Tutankhamun has a famous representation of the Nine Bows, and the nine foreign enemies. The tomb was closed with a knotted rope, and the rope impressed with a clay seal. The seal contains an impression with Anubis, reclining as a jackal, at the top list of the Nine foreign rebels, in a long, vertical cartouche-image.