Forensics officers and policemen look for evidence near a truck on the Promenade des Anglais seafront in the French Riviera town of Nice on July 15, 2016, after it drove into a crowd watching a fireworks display. (Photo credit Anne Christine-Poujoulat/AFP/Getty Images)
Nice Attack Investigation
People look at a truck stand guarded by the police on the Promenade des Anglais seafront in the French Riviera town of Nice on July 15, 2016, hours after it drove into a crowd watching a fireworks display.
(Photo credit Anne Christine-Poujoulat/AFP/Getty Images)
Nice Attack Investigation
Forensics experts evacuate a dead body on the Promenade des Anglais seafront in the French Riviera town of Nice on July 15, 2016, after a gunman smashed a truck into a crowd of revellers celebrating Bastille Day. (Photo credit Boris Horvat/AFP/Getty Images)
Nice Attack Investigation
Forensics officers and policemen look for evidences near a truck on the Promenade des Anglais seafront in the French Riviera town of Nice on July 15, 2016, after it drove into a crowd watching a fireworks display.
(Photo credit Anne Christine-Poujoulat/AFP/Getty Images)
Nice Attack Investigation
This picture taken on July 15, 2016, shows a bike and personal belongings left behind by people on the Promenade des Anglais seafront in the French Riviera town of Nice on July 15, 2016, after a truck drove into a crowd watching a fireworks display.
(Photo credit Anne Christine-Poujoulat/AFP/Getty Images)
Nice Attack Investigation
A forensic expert evacuates a dead body on the Promenade des Anglais seafront in the French Riviera city of Nice on July 15, 2016, after a gunman smashed a truck into a crowd of revelers celebrating Bastille Day, killing at least 84 people.(Photo credit Boris Horvat/AFP/Getty Images)
Nice Attack Investigation
Forensics officers and policemen look for evidences in a truck on the Promenade des Anglais seafront in the French Riviera town of Nice on July 15, 2016, after it drove into a crowd watching a fireworks display.
(Photo credit Anne Christine-Poujoulat/AFP/Getty Images)
Nice Attack Investigation
Forensics officers look for evidences on the Promenade des Anglais seafront in the French Riviera town of Nice on July 15, 2016, after a truck drove into a crowd watching a fireworks display.
(Photo credit Anne Christine-Poujoulat/AFP/Getty Images)
Nice Attack Investigation
French Gendarmerie (L) and French navy (R) vessels patrol near the Promenade des Anglais seafront in the French Riviera city of Nice on July 15, 2016, after a gunman smashed a truck into a crowd of revellers celebrating Bastille Day, killing at least 84 people.
(Photo credit Boris Horvat/AFP/Getty Images)
Nice Attack Investigation
Policemen walk on the site where a truck drove into a crowd watching a fireworks display on the Promenade des Anglais seafront in the French Riviera town of Nice on July 15, 2016. (Photo credit Valery Hache/AFP/Getty Images)
Nice Attack Investigation
A forensic expert examines dead bodies covered with a blue sheet on the Promenade des Anglais seafront in the French Riviera city of Nice on July 15, 2016, a day after a gunman smashed a truck into a crowd of revelers celebrating Bastille Day, killing at least 84 people.
(Photo credit Boris Horvat/AFP/Getty Images)
Nice Attack Investigation
Forensic police investigate a truck at the scene of a terror attack on the Promenade des Anglais on July 15, 2016 in Nice, France. (Photo by Patrick Aventurier/Getty Images)
Nice Attack Investigation
This picture taken on July 15, 2016, with a mobile phone, shows forensics officers and policemen looking for evidence near a truck on the Promenade des Anglais seafront in the French Riviera town of Nice, after it drove into a crowd watching a fireworks display. (Photo credit Valery Hache/AFP/Getty Images)
Nice Attack Investigation
A picture taken on July 15, 2016 shows an aerial view of the site of the deadly attack on the Promenade des Anglais seafront in the French Riviera city of Nice, after a gunman smashed a truck through a crowd celebrating Bastille Day, killing at least 84 and injuring dozens of children in what President Francois Hollande called a "terrorist" attack.
(Photo credit Valery Hache/AFP/Getty Images)
Nice Attack Investigation
French gendarmes stand next to a French flag at half-staff and debris at the site of the deadly attack on the Promenade des Anglais seafront in the French Riviera city of Nice on July 15, 2016, after a gunman smashed a truck through a crowd celebrating Bastille Day, killing at least 84 and injuring dozens of children in what President Francois Hollande called a "terrorist" attack.
(Photo credit Valery Hache/AFP/Getty Images)
Nice Attack Investigation
French police officers search a truck in a street of Nice on July 15, 2016, near the building where the man who drove a truck into a crowd watching a fireworks display the day before reportedly lived.
(Photo credit Anne Christine-Poujoulat/AFP/Getty Images)
Nice Attack InvestigationTACK-NICE-INVESTIGATION
French police officers search a truck in a street of Nice on July 15, 2016, near the building where the man who drove a truck into a crowd watching a fireworks display the day before reportedly lived.
(Photo credit Anne Christine-Poujoulat/AFP/Getty Images)
