BBC News
Published
image captionMichael Stone was convicted of two counts of murder and one of attempted murder
Lawyers for a man in prison for the murders of Lin and Megan Russell say a shoelace found at the scene could provide vital DNA evidence in their bid to overturn his conviction.
Michael Stone has twice been found guilty of murdering the mother and daughter in Chillenden, Kent, in 1996.
He was also found guilty of attempting to murder Megan's sister, Josie.
Stone's solicitor said Kent Police had found the previously-lost shoelace. Police are aware of Stone's appeal bid.
Paul Bacon said: "It was a really vital piece of evidence. It was used in strangling one of the parties. So it was not only a piece of evidence, but it was a murder weapon."