French police let terrorist through to promenade when he said he was delivering Ice cream.

"Mohamed Laouaiej  Bouhlel parked his truck on the promenade nearly nine hours before the attack, French media report, citing police sources. When police officers approached him, he told them that he was delivering ice cream and they allowed him to stay parked on the beachfront without checking his vehicle."

"According to some reports, the attacker spent the nine hours in his truck waiting for the revelers to turn out for the evening before plowing his vehicle into the crowd. Other media reports said that he had left the parked truck and later returned by bicycle. A bicycle was found in the truck by police."

"He had also earlier been repeatedly reported to police for theft and “acts of violence and use of weapons,” according to reports cited by the Daily Mail."

http://www.rt.com/news/351541-nice-attack-ice-cream