Butch DeFeo died in 2021. Before he died, he debunked the Lutz's story, saying in a letter to a reporter, "There are no devils, the devil is me." He never did say why he did it. https://pix11.com/news/local-news/long-island/i-am-the-demon-a-look-at-letters-amityville-horror-killer-ronald-defeo-sent-to-pix11s-marvin-scott/

After the infamous crime took place in 1974. George & Kathy Lutz thought they were purchasing their dream home at 112 Ocean Avenue in Amityville, New York. Despite the very same home being where the Defeo family met their end at the hands of Ronnie Defeo. But what was their dream home, soon became a living nightmare once the family started experiencing strange events within the house. The events they would later describe would inspire one of the most famous haunting stories of all time, "The Amityville horror." https://www.youtube.com/watch?v=d5MdYUf1kRU

If you're a horror movie and True Cime fan like me, you know who this monster is. Butch DeFeo is dead. Prison officials say they don't know what the COD is, but the autopsy results will tell them. Not to speak ill of the dead, but may this monster rot in the hell that he deserves. #AmityvilleHorror #DeFeo #TrueCrime