For many years the debate has raged, is the Shroud of Turin really the burial cloth of Christ or is it a hoax?  Nancy Grace sits down with dear friend and author, Guy Powell, to discuss his new book "The Only Witness: A History of the Shroud of Turin."   The book is historical fiction, a depiction of how the Shroud made its way to its current resting place in the  Cathedral of St. John the Baptist in Turin, Italy. Powell gives a brief overview of the testing and research done on this treasured Christian relic to determine its authenticity and lets us inside his motivation behind writing the compelling historical fiction.  See omnystudio.com/listener for privacy information.