There appear to be two different people named William Costello:
William James Costello (1932-2014)
William James Costello (August 2, 1932 – May 6, 2014) was an American animal scientist. He earned degrees in animal husbandry and meat science from North Dakota State University and Oklahoma State University. From 1965 to 1999, Costello was a professor in the Department of Animal and Range Science at South Dakota State University, and was named a distinguished professor in 1991. He died in Brookings, South Dakota.
William Costello (Evolutionary Psychology)
William Costello is a PhD student in Individual Differences and Evolutionary Psychology at the University of Texas at Austin. He is a member of Dr. David Buss' Evolutionary Psychology lab. Costello earned an MSc in Psychology, Culture, and Evolution from Brunel University in London in 2021. His research focuses on the underlying psychology of incels (involuntary celibates). He has been consulted to present research to the Commission for Countering Extremism. Costello has also written for publications such as Quillette and Areo.
