“A French court convicted seven men and one woman in connection with a truck attack on a seaside promenade on Bastille Day six years ago that killed 86 people and traumatized the nation. The driver, Mohamed Lahouaiej Bouhlel, a 31-year-old Tunisian, was shot dead by police after mowing down revelers gathered to watch a fireworks display in the French Riviera city of Nice, killing a dozen children. Islamic State claimed responsibility for the attack, saying it was a response to calls by the extremist group to target nations allied against it. Judges sentenced Mohamed Ghraieb, a 46-year-old French-Tunisian, who worked as a night watchman in a nearby hotel in Nice, and Chokri Chafroud, a 43-year-old Tunisian construction worker, to 18 years in prison for helping Lahouaiej Bouhlel prepare the attack. The two defendants were convicted of belonging to a terrorist organization. Messrs. Ghraieb and Chafroud testified in court they didn’t know Lahouaiej Bouhlel was an Islamic State sympathizer or that he was planning an attack. William Bourdon, a lawyer for Mr. Ghraieb, said he would appeal the court’s ruling. A lawyer for Mr. Chafroud declined to comment.”