Lord Lucan's brother speaks out for the first time on television as new evidence suggests a "mystery man" in the house leading up to the murder of Sandra Rivett and the brutal attack on Lady Lucan. He calls for a review of the guilty verdict and says his brother would never commit suicide. Sandra Rivett's secret son calls for justice for his mother.
Lord Lucan: New revelations
In November 1974 John Bingham, Lord Lucan, disappeared from his home in London under suspicious circumstances.
A BBC Inside Out investigation has uncovered new evidence including police intelligence reports and a witness statement which shed fresh light on the case.
Lord Lucan's brother Hugh Bingham speaks exclusively to BBC Inside Out, claiming that he does not believe Lucan killed himself.
Watch a video feature on the BBC News website.
Lord Lucan witness statement
A written statement from Lord Lucan's sister suggesting another man was at his house around the time of the murder of the family nanny has been uncovered.
His brother Hugh Bingham has called for the evidence to be looked at afresh.
Read the full story on the BBC News website.
Lord Lucan fact file
- 7 November 1974 - Sandra Rivett, the nanny of Lord Lucan's children, is found murdered
- 8 November 1974 - Lord Lucan disappears and his car is found abandoned at the port of Newhaven, East Sussex, prompting an international search
- 19 June 1975 - An inquest jury decides Lord Lucan murdered Mrs Rivett
- October 1999 - Lord Lucan is declared officially dead by the High Court
- Since his disappearance there have been dozens of alleged sightings of the peer in countries around the world