French judges on Tuesday ordered prison terms for eight suspects charged in the harrowing 2016 terror attack in Nice, where a suspected Islamist attacker rammed his truck into a night-time crowd celebrating the July 14 national holiday.Two men were sentenced to 18 years for helping Mohamed Lahouaiej-Bouhlel, a 31-year-old Tunisian, prepare the attack that killed 86 people and injured over 450 during a four-minute rampage on a seafront embankment in the southern city before being shot dead by police.