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.
Fall of Tenochtitlan
Cortés attempted to parley with the Aztecs, and after this failed he sent Moctezuma to tell his people to stop fighting. However, the Aztecs refused. The Spanish asserted that Moctezuma was stoned to death by his own people as he attempted to speak with them. Three stones hit him, one of them on the head, so cerebral hematoma is possible. Moctezuma refused all medical help as well as food, and died soon after the attack. The Aztecs later claimed that Moctezuma had been murdered by the Spanish. Two other local rulers were found strangled as well. Moctezuma's younger brother Cuitláhuac, who had been ruler of Ixtlapalapan until then, was chosen as the Tlatoani.