Ay
Egyptologist Bob Brier suggested that Ay murdered Tutankhamun in order to usurp the throne, a claim which was based on X-ray examinations of the body done in 1968. He also alleged that Ankhesenamun and the Hittite prince she was about to marry were also murdered at his orders. This murder theory was not accepted by all scholars, and more detailed CT scans of the mummy undertaken by National Geographic (published in late 2005) suggested that Tutankhamun did not die from a blow to his head as Brier had theorized. The "National Geographic" forensic researchers instead presented a new theory that Tutankhamun died from an infection caused by a badly broken leg since he is often portrayed as walking with a cane due to spina bifida, a hereditary trait in his family on his father's side. The bone fragments found in Tutankhamun's skull were most likely the result of post-mortem damage caused by Howard Carter's initial examination of the boy king "because they show no evidence of being inundated with the embalming fluid used to preserve the pharaoh for the afterlife". However, Brier has stated that the bone fragment in the skull is not relevant to the issue of whether Tutankhamun was murdered, acknowledging that it was likely caused by the embalmers. The evidence Brier presents for the murder is a dark spot on the base of the skull, indicating a blow to the head. Dr. Gerald Irwin agrees with Brier on this point.
Aten
Akhenaten was considered the "high priest" or even a prophet of Aten, being the main propagator of the religion in Egypt during his reign. After the death of Akhenaten, his son, Tutankhamun, reinstated the cult of Amun and the ban on religions in competition with Atenism was lifted. The point of this transition can be seen in the name change of Tutankhaten into Tutankhamun indicating the loss of favor in the worship of Aten. With the death of Akhenaten, the city of Amarna was abandoned, along with the worship of Aten. There is evidence that the people under Akhetaten's rule did not directly worship Aten, but "Worshiped the king and queen worshiping the disc" The cult of Aten was still in Egypt for another ten years or so as it faded and there was no purge of the cult after Akhenaten's death. When Tutankhamun came into power, his religious reign was one of tolerance, the only difference was that Aten was no longer the only god. Tutankhamun rebuilt the temples that were destroyed during Akhenaten's reign and he reinstated the old pantheon of gods. This return to the gods that were before Aten was "a move based publicly on the doctrine that Egypt's woes stemmed directly from its ignoring the gods, and in turn the gods' abandonment of Egypt:.