Did Butch Defeo act alone?

Answer:
  • Yes, Butch Defeo did act alone although he said voices told him to murder his parents and siblings. There is no proof that the house is Amityville was ever haunted or had any demonic action in the house and Defeo could well be Schizophrenic.
First answer by Marcy. Last edit by Marcy. Contributor trust: 8937 [recommend contributor recommended]. Question popularity: 4 [recommend question].