David Ray Griffin (August 8, 1939 – November 2022) was an American professor of philosophy of religion and theology and a 9/11 conspiracy theorist. Along with John B. Cobb, Jr., he founded the Center for Process Studies in 1973, a research center of Claremont School of Theology that promotes process thought. Griffin published numerous books about the September 11 attacks, claiming that elements of the Bush administration were involved. An advocate of the controlled demolition conspiracy theory, he was a founder member of Scholars for 9/11 Truth. Life and professional career Griffin was born on August 8, 1939. He was raised in a small town in Oregon, where he was an active participant in his Disciples of Christ church. After deciding to become a minister, Griffin entered Northwest Christian College but became disenchanted with the conservative-fundamentalist theology taught there. While pursuing his master's degree in counseling from the University of Oregon, Griffin attended a lecture series delivered by Paul Tillich at the Graduate Theological Union in Berkeley, California. At that time, Griffin decided to focus on philosophical theology. He eventually attended the Claremont Graduate University, from which Griffin received his PhD in 1970. As a student in Claremont, Griffin was initially interested in Eastern religions, particularly Vedanta. However, he started to become a process theologian while attending John B. Cobb's seminar on Whitehead's philosophy. According to Griffin, process theology, as presented by Cobb, "provided a way between the old supernaturalism, according to which God miraculously interrupted the normal causal processes now and then, and a view according to which God is something like a cosmic hydraulic jack, exerting the same pressure always and everywhere (which described rather aptly the position to which I had come)" (Primordial Truth and Postmodern Theology). Griffin applied Alfred North Whitehead's thought to the traditional theological subjects of christology and theodicy and argued that process theology also provided a sound basis for addressing contemporary social and ecological issues. Griffin's process theology is founded on the process philosophy of Whitehead and Charles Hartshorne. After teaching theology and Eastern religions at the University of Dayton, Griffin came to appreciate the distinctively postmodern aspects of Whitehead's thought. In particular, Griffin found Whitehead's nonsensationist epistemology and panexperientialist ontology immensely helpful in addressing the major problems of modern philosophy, including the problems of mind-body interaction, the interaction between free and determined things, the emergence of experience from nonexperiencing matter, and the