The True Story Behind The Conjuring: The Devil Made Me Do It
6. Demonic Possession
The alleged phenomena took a much more violent turn over the next few weeks as marks would inexplicably appear on David's body. Both Arne Johnson and Debbie Glatzel attest to seeing the child receive blows from unseen hands.
David Glatzel claimed that a sea of "beasts" surrounded him and routinely choked, hit and even stabbed him, leaving him writhing in agony. The boy would also break out into extreme rages with fits of profanity, spitting and extreme physical violence.
The violent outbursts reached an alarmingly dangerous level with the young boy allegedly tried to attack his grandmother with a knife. In the resulting struggle, he had to be restrained by four members of his family.
The Glatzel family took to sleeping during the day when David was at his calmest and spent their nights restraining the boy as he struggled, fought and cursed. During one of these long sessions, David allegedly spoke in a voice that was not his own, telling his brother-in-law Arne "You're going to do something terrible..."