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.
Tutankhamun
In 1915, George Herbert, 5th Earl of Carnarvon, the financial backer of the search for and the excavation of Tutankhamun's tomb in the Valley of the Kings, employed English archaeologist Howard Carter to explore it. After a systematic search, Carter discovered the actual tomb of Tutankhamun (KV62) in November 1922.