Exorcism of biting poltergeist leads to 911 call The exorcism of a Riverton poltergeist led a 911 call claiming a Holy Water-induced heart attack. "Exorzismus" (Exorcism). Large altarpiece ca. 1519 by the unnamed "Master of the wonders of Mariazell." The Fremont County Emergency Dispatch Center received a report that a woman in Riverton, Wyoming was possessed by a "poltergeist." The caller told a 911 operator that other occupants of the home attempted an exorcism, and that the woman stopped breathing when sprayed with Holy Water before going into cardiac arrest. When a deputy arrived at the scene, the woman was breathing and appeared to be fine. She was taken to the hospital anyway and is reportedly in stable condition. The home's occupants told the deputy a demon had been in the house breaking things and biting people. The deputy, however, could not find any evidence of such activity or that anyone had been bitten.