The Wall Street Journal reports: The man who killed 84 people in Nice was a violent drinker and drug taker with an “unbridled sex life” who developed a fascination with Islamic State and other terrorist propaganda, prosecutors said as they deepened their probe into whether a broader network fostered his radicalization.

François Molins, the chief Paris prosecutor overseeing the investigation into the Bastille Day attack, said Monday that police haven’t found any evidence that Mohamed Lahouaiej Bouhlel explicitly pledged allegiance to Islamic State or had links to any people associated with the Sunni Muslim militant group.

However, the prosecutor painted a picture of a man who underwent a rapid transformation in the weeks leading up the massacre and became suddenly enthralled with extremist messages and ultra-violent images.

Data recovered from Lahouaiej Bouhlel’s computer included pictures of militants draped in Islamic State flags and corpses as well as photos of Osama bin Laden and Mokhtar Belmokhtar, the head of an al Qaeda-aligned group called Murabitun. His computer also turned up searches for “horrible car accidents” and “shock videos,” Mr. Molins said. [Continue reading…]