Annecy experienced a black Thursday with the knife attack of a 31-year-old man on six people, including four young children. Faced with such a drama, how should it be approached with children? Child psychiatrist Stéphane Clerget takes stock.

"Explain, reassure and free yourself," says the child psychiatrist. The mayor of Annecy invites residents to meet Sunday morning, at the site of the attack, on the shores of Lake Annecy. A white march will be held in tribute to the victims.