Walls, Jerry L.: - Jerry L. Walls is professor of philosophy and scholar in residence at Houston Christian University. He has degrees from Houghton University, Princeton Theological Seminary, Yale Divinity School, and the University of Notre Dame. His years at Notre Dame as a graduate student were a major source of his interest in Roman Catholicism. He has written or edited some twenty books, among them a trilogy on the afterlife and a popular version of that material entitled Heaven, Hell and Purgatory: A Protestant View of the Cosmic Drama.