FILE In this Nov. 15, 1974 file photo, Ronald DeFeo Jr., center, leaves Suffolk County district court after a hearing, on New York's Long Island. DeFeo, the man convicted of slaughtering his parents and four siblings in a home that later inspired the book and movie "The Amityville Horror" has died in prison, officials said Monday., March 15, 2021. (AP Photo/Richard Drew)ALBANY, N.Y. – The man convicted of slaughtering his parents and four siblings in a home that later inspired the “The Amityville Horror” book and movies has died, prison officials said Monday. DeFeo was serving a sentence of 25 years to life in the 1974 killings in Amityville, on suburban Long Island. The corrections department said it couldn't disclose why DeFeo was hospitalized, citing health privacy laws.