The country begins three days of mourning for the vehicle victims of the deadly truck attack. The interior minister said today the truck driver, a 31yearold tunisian man named Mohamed Lahouaiej bouhlel, became radicalized quickly. 84 people were killed, more than 200 wounded during thursday attack when a truck plowed through a crowd celebrating bastille today. Nbc bay areas Christie Smith is at a vigil in San Francisco, but lets begin with Marianne Favro who has news about a uc Berkeley Student in nice the night of the attack. Reporter 20yearold Nicolas Leslie is one of 85 uc Berkeley Students who were studying abroad in nice. This was video of his family leaving their delmar home earlier today to fly to france to look for their son. Three other Berkeley Students in the group were injured in the attack. Officials say friends of leslies saw him avoid the truck but lost him later during the chaos. Now his uncle is reportedly checking all the hospitals in the area for leslie, while fellow