White House Farm, a farmhouse near the village of Tolleshunt D'Arcy in Essex, England, was the home of Nevill and June Bamber. Nevill Bamber, 61, was a farmer and local magistrate; June Bamber, 61, was his wife. During the night of 6 to 7 August 1985, they were killed at the farm along with three other members of the family: their daughter, Sheila Caffell, 28, and her six-year-old twin sons, Daniel and Nicholas Caffell, who had been staying at the house. All five died from gunshot wounds inflicted with a .22 semi-automatic rifle kept on the farm.
When armed officers entered the house on the morning of 7 August, they found the rifle lying across the body of Sheila Caffell, who had been diagnosed with schizophrenia. Investigators initially treated the deaths as a murder-suicide, concluding that she had shot the others before taking her own life. That interpretation was later challenged. A relative found the rifle's sound moderator, which carried traces of blood and paint, and a witness told police that the family's adopted son, Jeremy Bamber, had implicated himself. Prosecutors came to argue that Bamber, the only surviving member of the immediate family, had shot all five relatives and arranged the scene to resemble a murder-suicide.
Jeremy Bamber was arrested and charged in September 1985. His trial at Chelmsford Crown Court ended on 28 October 1986, when a jury convicted him by a majority verdict on five counts of murder. He was sentenced to life imprisonment and was later told he would never be released. The prosecution presented inheritance as an alleged motive; the defence maintained that Sheila Caffell had killed her family and then herself.
Bamber has consistently maintained that he is innocent, and the case remains contested. An application for permission to appeal was refused in 1989. Following a referral by the Criminal Cases Review Commission that focused on scientific evidence relating to the rifle's sound moderator, the Court of Appeal reviewed the conviction and upheld it in December 2002. Bamber and his legal representatives have continued to seek a further review, and questions about the conduct of the original police investigation have persisted. As of the most recent proceedings the conviction stands, while efforts to reopen the case continue.