What is the Islamic State group, and what attacks has it inspired by offshoots and lone wolves?
AP
Emergency services attend the scene Wednesday on Bourbon Street after a vehicle drove into a crowd in New Orleans.
FBI via AP
This undated passport photo, provided by the FBI, shows Shamsud-Din Bahar Jabbar.
AP
A black flag with white lettering lies on the ground rolled up behind a pickup that a man drove into a crowd on Bourbon Street in New Orleans, killing and injuring a number of people, early Wednesday morning.
