Ronald DeFeo Jr., American criminal (born 1951)

Ronald Joseph DeFeo Jr. was an American mass murderer who was tried and convicted for the 1974 killings of his father, mother, two brothers, and two sisters in Amityville, New York. He was found guilty of six counts of second degree murder and was sentenced to 25 years to life. DeFeo died in March 2021. The case inspired the book and film versions of The Amityville Horror.

March 12 is the 71st day of the year in the Gregorian calendar; 294 days remain until the end of the year.