Yep frankly I think its him. But then the Egyptians really threw a lot into that tomb to throw us off the track. Kiya's canopic jars, her sarcophagus possibly, Tiye's funeral shrine, all 4 of Akhenaten's "bricks" with an early version of his name, and last but not least a bowl from King Unas who had died some 1500 years earlier?