William Peter Blatty was born on January 7, 1928 in New York City, New York, USA. He was a writer, known for The Exorcist (1973), The Exorcist III (1990) and The Ninth Configuration (1980). He was married to Julie Alicia Witbrodt, Linda Blatty, Elizabeth Gilman and Mary Margaret Rigard. He died on January 12, 2017 in Bethesda, Maryland, USA.