John DeSalvo

John DeSalvo holds a Ph.D. in biophysics and, for more than 20 years, scientifically studied the Shroud of Turin. A former college professor and current director of the Great Pyramid of Giza Research Association, he is the author of four books, including Andrew Jackson Davis: The First American Prophet and Clairvoyant and Decoding the Pyramids. He lives in Minnesota.