After a lengthy trial that concluded right before Thanksgiving, Butch DeFeo was found guilty of killing his father, mother, two brothers, and two sisters. On December 4, 1975, Justice Thomas Stark said that the crimes were “the most heinous and abhorrent,” and sentenced Butch to 25 years to life. No other suspect was ever prosecuted for the crime. Officially, Butch DeFeo acted alone in the grisly crime. Unofficially, the evidence pointed to a conspiracy.