The Amityville Murders (Rare Pics)One of the most infamous family massacres in American history took place on November 13, 1974, in the quiet town of Amityville, New York.Ronald DeFeo Jr., a 23-year-old troubled young man, took a .35-caliber Marlin rifle and systematically executed his entire family while they slept.The DeFeo Family Murders (November 13, 1974)The VictimsAt around 3:15 AM, Ronald "Butch" DeFeo Jr. grabbed his rifle and began moving through the house, killing each of his family members one by one:Ronald DeFeo Sr. (43) – Shot twice in the back while he slept.Louise DeFeo (42) – Shot twice in the back, likely waking up just before death.Dawn DeFeo (18) – Shot once in the head, killing her instantly.Allison DeFeo (13) – Shot once in the face, destroying her head.Marc DeFeo (12) & John DeFeo (9) – Each shot once in the back, execution-style.The Aftermath – Crime Scene DiscoveryLater that day, Ronald DeFeo Jr. ran into a local bar, claiming that his family had been murdered. When police arrived at the house, they were met with a horrific scene:Bodies of the entire family lying face down in their beds, blood soaking the sheets.Walls splattered with blood in some of the rooms.The murder weapon—Marlin rifle—found hidden in a closet.The crime scene photos were later made public, showing the DeFeo family members dead in their beds, with graphic bloodstains on the pillows and sheets.Ronald DeFeo Jr.'s Arrest & ConfessionInitially, DeFeo claimed the murders were done by a mob hitman, but his story quickly fell apart. After hours of questioning, he finally confessed, saying:"Once I started, I just couldn't stop. It went so fast."However, in later years, DeFeo changed his story multiple times, claiming:He was possessed by demons.His sister, Dawn, actually killed some family members.He was forced to kill under threats from a mysterious stranger.Despite these conflicting accounts, he was found guilty of six counts of second-degree murder and sentenced to six consecutive life terms. He died in prison in 2021.