This photo provided by Jess Davis shows the Copeland family, from left, Sean, Maegan, Brodie, Austin and Kim. Davis, a family friend, said Sean Copeland and his son Brodie were killed Thursday, July 14, 2016 when a Frenchman of Tunisian descent drove a truck through crowds celebrating Bastille Day along Nice's beachfront, killing scores of people. (Courtesy of Jess Davis via AP)

The Nice victims: American student was taking tech course

The terror attack on a joyous Bastille Day crowd waiting to watch fireworks in Nice, France, indiscriminately killed dozens of people, inclu…

A police officer watches people gathering around a floral tribute for the victims killed during a deadly attack, on the famed Boulevard des Anglais in Nice, southern France, Sunday, July 17, 2016. French authorities detained two more people Sunday in the investigation into the Bastille Day truck attack on the Mediterranean city of Nice that killed at least 84 people, as authorities try to determine whether the slain attacker was a committed religious extremist or just a very angry man. (AP Photo/Laurent Cipriani)

2 more arrests in Nice truck attack; 49 dead still not identified

Update

The Bastille Day carnage killed at least 84 people and wounded 202. About 85 people remain hospitalized, with 18 of those still in life-thre…