family and a cyclist. these are images from the murder scene. the al hillis two young daughters survived the attack. zeena, then aged four, was discovered hiding the younger daughter, then aged four, was discovered hiding under her mother s body inside the family car. the elder daughter, seven at the time, was found with serious head injuries after being shot and beaten. the bbc s hugh schofield has the latest. this point, there has not been a breakthrough at all, there are words of great caution coming from the french alps about this. it is not the first time there have been arrests, people have been called in for questioning now and again. it is a long investigation. possibly this is significant, but quite possibly not, so let s not jump to any conclusions. the background is this puzzling case that goes back ten years, from a little village in the hills where it happened. september 2012, a carfound on the side of the road, its engine still running,