30 miles outside of New York City, in the Long Island town of Amityville, stands the three-story colonial home, forever linked to the Amityville Horror phenomenon. On November 13, 1974, this home was the scene of mass murder. Using a .35 Marlin rifle, 23-year-old Ronald J. DeFeo Jr. murdered his entire family while they were asleep, which included his parents and four siblings. Today we are going to talk about the 3 families involved, The Defeo's. Lutz's and The Warren's. Sources:The Real 'Amityville Horror': Chilling Facts About the Crime and Haunted House (biography.com