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.
KV62
Some of the treasures in Tutankhamun's tomb are noted for their apparent departure from traditional depictions of the boy king. Certain cartouches where a king's name should appear have been altered, as if to reuse the property of a previous pharaoh—has often occurred. However, this instance may simply be the product of "updating" the artifacts to reflect the shift from Tutankh"aten" to Tutankh"amun". Other differences are less easy to explain, such as the older, more angular facial features of the middle coffin and canopic coffinettes. The most widely accepted theory for these latter variations is that the items were originally intended for "Smenkhkare", who may or may not be the mysterious KV55 mummy. This mummy, according to craniological examinations, bears a striking first-order (father-to-son, brother-to-brother) relationship to Tutankhamun.