Authorities are trying to unearth the path that led Mohamed Lahouaiej Bouhlel, the man who killed 84 people with a 19-ton truck during the Bastille Day festivities in Nice, from petty crime and violence to murderous terrorism.

Nice attack: terrorist "was drinking alcohol, eating pork, using drugs and had a wild sex life"

Authorities are trying to unearth the path that led Mohamed Lahouaiej Bouhlel, the man who killed 84 people with a 19-ton truck during the Bastille Day festivities in Nice, from petty crime and violence to murderous terrorism.