Ronald DeFeo Jr.

Ric Osuna's book was adapted into a docudrama titled Shattered Hopes: The True Story of the Amityville Murders. The film, released on December 16, 2011, was written, directed and produced by Ryan Katzenbach and featuring narration by veteran actor Ed Asner, examines all aspects of the Amityville case, with a strong focus on the DeFeo family and the events surrounding their murders.

On November 30, 2000, Ronald DeFeo met with Ric Osuna, the author of The Night the DeFeos Died, which was published in 2002. According to Osuna they spoke for about six hours. However, in a letter to the radio show host Lou Gentile, DeFeo Jr. denied giving Ric Osuna information that could be used in his book, claiming that he immediately left the interview and did not speak to Osuna about anything substantive.

In 1990, Ronald DeFeo Jr. filed a 440 motion, a proceeding to have his conviction vacated. In support of his motion, DeFeo asserted that Dawn and an unknown assailant, who fled the house before he could get a good look at him, killed their parents and Dawn subsequently killed their siblings. He said the only person he killed was Dawn and that it was by accident as they struggled over the rifle. Again, he asserted he was married to Geraldine and that her brother was with him at the time of the murders. An affidavit from Richard Romondoe was submitted to the court and it was asserted he could not be located to testify in person. Evidence was submitted to the court by the Suffolk County District Attorney's Office suggesting that Richard Romondoe did not exist and that Geraldine Gates was living in upstate New York married to someone else at the time of the murders. Geraldine Gates did not testify at this hearing because the authorities had already confronted her about the false claims and in 1992 secured a statement under oath where she admitted Romondoe was fictitious and that she did not actually marry DeFeo until 1989 in anticipation of the filing of the 440 motion.

Since his conviction, DeFeo has given several varying accounts of how the killings were carried out. In a 1986 interview for Newsday, DeFeo claimed his sister Dawn killed their father and then their distraught mother killed all of his siblings before he killed his mother. He stated that he took the blame because he was afraid to say anything negative about his mother to her father, Michael Brigante Sr., and his father's uncle, out of fear that they would kill him. His father's uncle was Pete DeFeo, a caporegime in the Genovese crime family. In this interview, DeFeo also asserted he was married at the time of the murders to a woman named Geraldine Gates, with whom he was living in New Jersey, and that his mother phoned to ask him to return to Amityville to break up a fight between Dawn and their father. Subsequently, he drove to Amityville with Geraldine's brother, Richard Romondoe, who was with him at the time of the murders and could verify his story completely.

Most of the claims made in Ric Osuna's book are sourced to Ronald DeFeo Jr.'s ex-wife, Geraldine Gates. While in the 1986 interview with Newsday she asserted she married DeFeo in 1974, in Osuna's book, she alleges they married in 1970. Their 1993 divorce case says that they met in 1985, married in 1989 and divorced in 1993.

DeFeo's trial began on October 14, 1975. He and his defense lawyer, William Weber, mounted an affirmative defense of insanity, with DeFeo claiming that he killed his family in self-defense because he heard their voices plotting against him. The insanity plea was supported by the psychiatrist for the defense, Daniel Schwartz. The psychiatrist for the prosecution, Dr. Harold Zolan, maintained that, although DeFeo was a user of heroin and LSD, he had antisocial personality disorder and was aware of his actions at the time of the crime.

On November 21, 1975, DeFeo was found guilty on six counts of second-degree murder. On December 4, 1975, Judge Thomas Stark sentenced DeFeo to six concurrent sentences of 25 years to life.

Around 6:30 pm on Wednesday, November 13, 1974, 23-year-old DeFeo entered Henry's Bar in Amityville, Long Island, New York, and declared: "You got to help me! I think my mother and father are shot!" DeFeo and a small group of people went to 112 Ocean Avenue, which was located near the bar, and found that DeFeo's parents were dead inside the house. One of the group, DeFeo's friend Joe Yeswit, made an emergency call to the Suffolk County Police, who searched the house and found that six members of the same family were dead in their beds.

Judge Stark denied the motion, writing, "I find the testimony of the defendant overall to be false and fabricated. His testimony that during the fall of 1974 he was married and lived with his wife and child at Long Branch, New Jersey is incredible and not worthy of belief. He produced no corroborating evidence in this regard... another reason for my disbelief of defendant's testimony is demonstrated by consideration of several portions of the trial testimony... he signed a lengthy written statement describing in detail his activities... in this statement he said that he lived with his family at 112 Ocean Avenue in Amityville and that he worked for his father... that he usually went to and from work with his father; that he was ill and stayed home from work on November 12, 1974; that he was on probation for having stolen an outboard engine and had an appointment to see his probation officer in Amityville on that very afternoon... defendant's girlfriend, Mindy Weiss, testified that she began dating the defendant in June 1974, and was with him frequently that summer and fall". Stark further declared, "Defendant's testimony that he did not shoot and kill the members of his family is likewise incredible and not worthy of belief".

The victims were Ronald Jr.'s parents: Ronald DeFeo Sr. (44) and Louise DeFeo, née Brigante (42); and his four siblings: Dawn (18), Allison (13), Marc (12), and John Matthew (9). All of the victims had been shot with a .35 caliber lever action Marlin 336C rifle around three o'clock in the morning of that day. The DeFeo parents had both been shot twice, while the children had all been killed with single shots. Physical evidence suggests that Louise DeFeo and her daughter Allison were both awake at the time of their deaths. According to Suffolk County Police, the victims were all found lying face down in bed. The DeFeo family had occupied 112 Ocean Avenue since purchasing it in 1965. The six victims were later buried in nearby Saint Charles Cemetery in Farmingdale.

Ronald Joseph 'Butch' DeFeo Jr. (born September 26, 1951) is an American mass murderer who was tried and convicted for the 1974 killings of his father, mother, two brothers, and two sisters. The case inspired the book and film versions of The Amityville Horror.