The following post contains potential SPOILERS for The Conjuring: The Devil Made Me Do It, as it discusses the facts of the real-life case featured in the film.
The trailer for The Conjuring: The Devil Made Me Do It boasts that it is “based on the true case files of Ed and Lorraine Warren” and that it involves their investigation of a 1981 case about a man who “pled not guilty by reason of demonic possession.”
The couple had received notoriety for their involvement with the famous Amityville Haunting, which appeared as the prologue of The Conjuring 2.
However, because there was no possible way Johnson’s defendant could prove this supernatural event in court, Johnson was convicted of first-degree manslaughter.