Video: 'The True Story Behind "The Amityville Horror"'

(Wednesday, November 13, 1974, at about 3:00 a.m. EST) — A well-to-do car dealer, his wife and four of his five children were shot and killed while they slept in their beds inside the family’s home at 112 Ocean Avenue in Amityville, New York, on Long Island, killed by eldest son Ronald DeFeo, Jr., 23.

Video: 'The Amityville Haunting: Horror Or Hoax Documentary | HistoryIsOurs'

The story of the murders, and the supernatural events alleged by the Lutz family after their purchase of the house in 1975, would become the basis for a bestselling book in 1977 by Jay Anson and a popular 1979 horror film.

Video: 'Amityville Horror Defeo Murders Documentary'