The late Fr. Herbert J. Ryan, S.J., from Loyola Marymount University talks about the 1949 exorcism of a young man in St. Louis whose case inspired the novel by William Peter Blatty, "The Exorcist." Fr. Ryan served as a consultant on the film "The Exorcism of Emily Rose."
this fascinating article which Jesuit priest and author Fr. James Martin tweeted about today: "Wow. Didn’t know these inside-Jesuit stories were public now. The true story behind "The Exorcist" case in St. Louis."