 According to testimony by the Glatzel family, 11-year-old David Glatzel had allegedly played host to the demon that forced Johnson to kill Bono.After witnessing a number of increasingly ominous occurrences involving David, the family, exhausted and terrified, decided to enlist the aid of self-described demonologists Ed and Lorraine Warren (noted for their investigation into the famed Amityville Haunting) in a last-ditch effort to "cure" David.The Glatzel family, along with the Warrens, then proceeded to have multiple priests petition the Church to have a formal exorcism performed on David.