inputs: hypothesis: Alexandra Holzer has an house in Amityville. premise: The death was confirmed by his daughter Alexandra Holzer. Mr. Holzer — who wrote more than 140 books on ghosts, the afterlife, witchcraft, extraterrestrial beings and other phenomena associated with the realm he called "the other side" — carried out his most famous investigation with the medium Ethel Johnson-Meyers in 1977. Together they roamed the house in Amityville, in which a young man, Ronald DeFeo Jr., had murdered his parents and four siblings in 1974. The house had become notorious after its next owners claimed to have been tormented by a series of spine-chilling noises and eerie visitations, set forth in the best-selling 1977 book "The Amityville Horror: A True Story," written by Jay Anson.