At least 12 people were arrested over the weekend and told police that he was "an extremely dangerous terrorist network."
Meanwhile, the 7 other people are expected to appear in court. Material for preparing bombs were found in a garage in the Paris suburb Torsi Tuesday night.
This discovery came after an attack with grantatë to a grocery store in another suburb Sarasel, on September 19, where a person was injured.
A person suspected of organizing the attack, 33-year-old Jeremie Louis Sidney, was shot dead at his home in Strasburg on Saturday, in a shootout with police.
I previously sentenced to prison for drug trafficking, he was recently converted to Islam. Videos seized in his apartment show 33-year-old talking about the 11 September 2001 attacks in New York, as well as pointing out that these attacks were only the beginning.
Prosecutors described it as a "criminal" and said his fingerprints were found on the remaining pieces of the grenade thrown into the shop in the Jewish neighborhood of Paris.
