[2] Two members of the cell were first arrested after a grenade attack against a Jewish grocery store in Sarcelles in September 2012 that injured one person.
Three days after the shootout, police found "bags of potassium nitrate, sulfur, saltpeter, headlight bulbs and a pressure cooker" belonging to Louis-Sidney in an underground car park in Torcy, a suburb east of Paris.
[3] According to French officials, two other alleged members of the cell, French-Algerian Ibrahim Boudina and French-Tunisian Abdelkader Tliba, were found to have set off for Syria just days after the attack.
Police thereafter found "a handgun, bomb-making instructions, and three soda cans filled with the high-explosive compound TATP" in a storage closet belonging to Boudina.
[2] The court noted the diverse backgrounds of the twenty accusees, some being from affluent families and originating in Algeria, Laos and France.