Cherif Kouachi, suspected of being one of those responsible for the attack on the French satirical newspaper Charlie Hebdo, which will be implemented with the brother, was arrested and was known by French anti-terrorist services.
Have been in the same prison that crossed for the first time, with Djamel Beghal. An important figure of the French radical Islamism that is serving a prison sentence of 10 years for preparing attacks against France.
Saïd Kouachi, the eldest of two brothers, will have had military training in Yemen. Since the beginning of 2000 they had turned to radical Islam.
Some police sources believe that the death of the agent was not scheduled, others say it could have been a diversion for the escape of Kouachi brothers.
To complete this puzzle the French police still looking for the companion of Coulibaly, Hayat Boumedienne, who will also be linked to the case.