The Case

In November 2011 Agnès Marin, 13, vanishes from her boarding school in the Cévennes.

In 2002, the biggest case of pedophilia in France breaks out in Angers.

The murder of 16-year-old schoolgirl Christelle Maillery, committed at Le Creusot in 1986.

Susanna Zetterberg, a 19-year-old Swedish girl abducted as she left a Parisian nightclub,

The murder of Mamadou Magassouba, teacher and former boxing champion from Saint Ouen.

It isn't his first crime scene, yet six years later it will continue to haunt him.