In the early hours of 7 August 1985, five members of the Bamber family were shot dead.
He continues to protest his innocence..
But a year later, Jeremy Bamber, also adopted, was convicted.
Initially, Sheila Caffell was thought to have killed her twin six-year-old sons and adoptive parents and then to have turned the gun on herself.
In the early hours of 7 August 1985, five members of the Bamber family were shot dead