John Ketchum (1979)

John Ketchum was noted for living where the Amityville house now stands.

History
According to a book, He was ran out of Salem for being a witch. He built his house where the Lutz's house is currently at. Claims were made the grounds had devil worshiper, death, and sacrifice. Energy can not be created or destroyed, only change forms. This might explain why everyone that lives in the house goes insane.