Bastille Day truck attack

After last week's truck attack, "We're lost," says one resident. "We just don't know how to deal with it. We're living in endless doubt."

France's anti-terror prosecutor said that more than 400 people across multiple agencies have been working on the probe. Authorities have taken five possible accomplices into custody.

It's a claim we need to take with caution, because French authorities have not yet found any links between the suspect and any militant organizations. They've taken five people into custody.

AmericanS Sean Copeland, son Brodie and student Nicolas Leslie were killed by a truck in Nice, France, along with at least 82 other victims from around the world.

Law enforcement and judicial officials have identified 31-year-old Mohamed Lahouaiej Bouhlel as the suspect who they believe plowed into a crowd, killing at least 84 people.

David Coady was confused, at first, to see the truck in the closed-off street. Then: "People were literally diving for their lives," Eric Drattell says. "There were bodies and blood everywhere."

More than 200 people were injured on Thursday when a truck drove for more than a mile through a crowd of seaside celebrators in Nice, France. The attacker was shot and killed by police.

The State Department regularly issues travel alerts for U.S. citizens. Now U.S. gun violence has led other countries to urge their own citizens to show caution when visiting the U.S.