>> A picture starting to emerge of the Nice attacker and the tough questions that French security services will face. At least 84 people killed when a man drove a truck into crowds celebrating Bastille Day. The attacker named as Tunisian national Mohamed Lahouaiej Bouhlel. Reuters France correspondent, Matthias Blamont, in Paris has been looking into what we know about him.
>> Well, obviously, one needs to be very careful, but according to a police source the suspected attacker is a Tunisian national, aged 31. His accommodation is being searched by the police as we speak. The media also reported he was married and a father of three children. We need to be very careful, because another piece of identification was also found in the truck that was used for the attack and so the role of this other person is still unclear.
>> Still too early to say whether the attacker was a so-called lone wolf or had help. Reuters sources say he was known to police for crimes involving theft and violence. But he wasn't on any intelligence service watch list, yet again the question is why he wasn't caught earlier.
>> France appears to be reacting strongly after the attacks rather than before. Intelligence services have said that some major attacks had been prevented in the past. But with what happened last year, if you remember the Charlie Hebdo shootings, the Bataclan shootings and now this attack in Nice, there is no doubt that the intelligence services will be facing tremendous pressure.
>> Questions too about why it took two kilometers to stop the truck attacker. And why he was able to access Nice's Promenade des Anglais which had been closed for traffic for Bastille Day. About 235 people now killed in terror attacks in France since January last year. Lessons may need to be learned from Nice if that toll isn't to rise further.