High Quality Content by WIKIPEDIA articles! The Demon Murder Trial is the first known court case in the United States of a lawyer claiming his client was innocent due to demonic possession. It involved the conviction, on November 24, 1981, of Arne Cheyenne Johnson, a resident of Brookfield, Connecticut, for first-degree manslaughter of his landlord Alan Bono. In the year leading up to the attack on Bono, Johnson had been staying with his fiancee, whose younger brother supposedly had been possessed by demons and whose family called in the self-described demonologists Ed and Lorraine Warren. Johnson supposedly taunted and was possessed by demons from the boy, and several months later killed his landlord during a heated conversation. His defense lawyer tried to argue in court that he was possessed, but the judge ruled that no such defense existed, and Johnson served 5 years of a 10 to 20 year sentence. The trial attracted media attention from around the world.