"The movie made it famous. His 43-year-old parents, Ronald and Louise, were both shot twice. All Rights Reserved. In the book, the Lutzes fled the house in terror after 28 days of windows slamming, an oozing slime occurring, and ghoulish visions appearing. "As far as I'm concerned, if I didn't kill my family, they were going to kill me," DeFeo reportedly said at trial. Their stories of demonic possession helped inspire The Amityville Horror book and original movie, along with the story of the DeFeo family. At around 6.30pm that evening, DeFeo went into a nearby bar asking for help, pretending to have just discovered the bloodbath. The nightmarish account of DeFeo's murders and the Lutz's supernatural ordeal are being reexamined following news of DeFeo's death aged 69 at the Sullivan Correctional Facility in New York on Friday. On December 21, 1975, DeFeo was convicted of six counts of second-degree murder and sentenced to six sentences of 25-years to life. 21 3.6K views 1 year ago Ronald Joseph DeFeo Jr. (September 26, 1951 - March 12, 2021) was an American mass murderer who was tried and convicted for the 1974 killings of his father, mother,. Paranormal investigator Stephen Kaplan, who investigated the home shortly after the Lutzs fled, wrote a book critical of their supernatural allegations. In the dead of night, he murdered his family, including both parents and four younger siblings evidence suggests his mother and 13-year-old sister Allison were awake when he turned his gun on them. An official cause of death is yet to be determined. Watch a mini documentary about Ronald DeFeo Jr and the Amityville murders here:. DeFeo Family grave site.. :: Sue's ODD Travels At the police station, he said an alleged hitman, Louis Falini, had carried out the murders and claimed that he might be in danger, too. The case inspired the book and film versions of . 'Amityville Horror' killer Ronald DeFeo Jr. dies in prison