Published on Sep 6, 2013
<iframe src="//www.youtube.com/embed/xOcv7hfQEi8?rel=0" allowfullscreen="" frameborder="0" height="360" width="480"></iframe>
Twelve months after three Britons and a Frenchman were gunned down in the Alps, police say a family feud is their prime line of inquiry. Andrew Raven reports.
