File photo - NICE, FRANCE - JULY 18: People gather to observe a minute's silence in tribute to the victims of the deadly Nice attack at La Promenade des Anglais on July 18, 2016 in Nice, France. A French-Tunisian attacker killed 84 people as he drove a lorry through crowds, gathered to watch a firework display during Bastille Day Celebrations. The attacker then opened fire on people in the crowd before being shot dead by police.(Photo by Patrick Aventurier/Getty Images)