The convicted killer who spawned the legend of “The Amityville Horror” has died in a New York prison. Ronald “Butch” DeFeo, Jr., who was 69 years old, died at the Albany Medical Center on March 12, multiple news outlets are reporting. He had been taken there on February 2 from the prison in Fallsburg, New York where he was serving six sentences of 25 years to life for the murders of his father, mother, two sisters and two brothers on November 13, 1974. He was convicted on six counts of second-degree murder in 1975. DeFeo’s cause of death has not yet been determined. Get our free mobile app