Editing Ronald DeFeo, Jr. (section)

{{Important}}
{{Villain Infobox
|image = Ronald defeo.jpg
|fullname = Ronald Joseph DeFeo Jr.
|alias = Butch
|origin = Brooklyn, New York City, New York, United States
|occupation =Unknown 
|crimes = Mass [[murder]]<br>[[Familicide]]
|hobby =Being with his family 
|goals =Kill his family (Succeeded) 
|type of villain = Delusional Murderer
|motive = Possible Mental Illness
|skills = Rifle}}

'''Ronald Joseph "Butch" DeFeo Jr.''' (September 26<sup>th</sup>, 1951 - March 12<sup>th</sup>, 2021) was an American mass murderer. He was tried and convicted for the 1974 killings of his father, mother, two brothers, and two sisters. The case inspired the book and film versions of ''[https://en.wikipedia.org/wiki/The_Amityville_Horror The Amityville Horror]''.