William P. Blatty (1928-2017) was a noted author and movie screenwriter. Born in New York City on January 7, 1928, Blatty won a scholarship to Georgetown University, where he graduated with a B.A. in 1950. Later, he earned an M.A. in Literature from George Washington University. From 1951 to 1954, Blatty served in the U.S. Air Force Psychological Warfare Division. In 1954, he was stationed in Lebabon with the United States Information Agency (USIA).
Willaim P. Blatty was the author of "The Exorcist" (1973), "The Ninth Configuration" (1980), and "The Exorcist III" (1990). In 1973, he wrote the screen play to the movie version of "The Exorcist," and he won an Academy Award for his efforts. Much of the film was shot at Georgetown.
William P. Blatty died on January 12, 2007 in Bethesda, Maryland at the age of 89.
[Sources: (1) "William Peter Blatty, Author of 'The Exorcist," Dies at 89" in "The Washington Post" obituary 1/13/2017. (2) International Movie Database Online.].