Lucie, 16, left the family home in Vavaincourt on February 4 in the morning. A note from him would have reached his parents a few days later.

The investigation was entrusted to the Commercy research brigade, which carried out “numerous interviews”, “telephone investigations” and visits to the homes of “Lucie’s family and friends” According to the first hearings, Lucie had “run away from the past”