claim: Buffy the Vampire Slayer only had one co-executive producer.
evidence: Otto John Schaden -LRB- August 26 , 1937 -- November 23 , 2015 -RRB- was an American Egyptologist .. Egyptologist. Egyptologist. He was the field director of the Amenmesse Tomb Project of the University of Memphis -LRB- Tennessee -RRB- .. Amenmesse Tomb Project. Amenmesse Tomb Project. University of Memphis. University of Memphis. Tennessee. Tennessee. Amenmesse. Amenmesse. In addition to his work on the tomb of Amenmesse -LRB- KV10 -RRB- in the main arm of the Valley of the Kings , he has also cleared and reinvestigated tombs WV23 , WV24 , and WV25 in the Western Valley .. Amenmesse. Amenmesse. KV10. KV10. Valley of the Kings. Valley of the Kings. WV23. WV23. WV24. WV24. WV25. WV25