A father and his young son from Texas were among the scores of people killed in a terrorist attack in Nice, France on Thursday, while a University of California, Berkeley student studying abroad in France is still missing, according to his family and friends.

A truck driver late Thursday barreled for more than a mile through a seaside promenade filled with people celebrating Bastille Day, killing 84 people and critically injuring around 50 more. French President François Hollande said the victims included many young children...