A fresh appeal for information into the murder of a bookmaker 10 years ago has been launched by the police.
John Sheppard was stabbed to death in his betting shop on Cambridge Street, Aylesbury, Bucks, on 3 December 1994.
Detectives in Aylesbury investigating his killing say the level of violence used was "despicable".
Police hope people with information who have not yet come forward will feel more able to do so as their loyalties may have changed.
The motive of the murder is still thought to be robbery as money was stolen, although not a large amount.
A reward of £20,000 is still on offer for information leading to the conviction of Mr Sheppard's killer.