The body without life for Tessa had been found last December 20 at the edge of the road to Saint-Julien-of-Concelles, near Nantes, in Loire-Atlantique.
It is a motorist who had made the macabre discovery.
A few moments before, this high school girl of 17 years old on the way home, on foot, after it had been filed at a bus stop in the centre of the village, as she was used to.
She would be deceased between 19: 30 and 20: 30.
A month later, the worry is dragging. Any door to believe that the teenager was struck by a vehicle. But the absence of vidéosurveillances, vehicles, damaged, or the witnesses do not help the investigators.
Among the ideas studied by the authorities : that of a shock caused by a trailer, a truck without the driver noticing.
A white march will take place this Saturday, January 26, from Saint-Julien to 14 hours in front of the town hall in Saint-Julien-de-Concelles, Loire-Atlantique.