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.
Sennedjem (18th Dynasty)
Sennedjem was a high Ancient Egyptian official living under king Tutankhamun at the end of the 18th Dynasty. Sennedjem was "overseer of tutors", but also bore several other titles, such as "father of the god, beloved of the god", "fan-bearer on the right side of the king". Sennedjem is so far only known from his decorated tomb at Akhmim. The tomb is today heavily destroyed and much of the decoration is lost. The tomb was never finished and it is uncertain whether Sennedjem was ever buried here. In the tomb appears several times the name of king Tutankhamun, providing evidence that it was constructed under this king. In the tomb decoration also appears the "overseer of nurses" Senqed. The tomb was evidently built for two officials. It seems that the name of Sennedjem was deliberately erased from the tomb decoration. Evidently Sennedjem fell out of favour and his memory was deleted. It is uncertain whether that happened under Tutankhamun or later.