Through online campaigning and propaganda, the Islamic State group continues to attract new recruits for its global terror campaign, the New Orleans attack shows.

The attack on Bourbon Street "struck me as being particularly reminiscent of ISIS advice,” said Joshua Fisher-Birch, a researcher at the Counter Extremism Project.

It is the deadliest attack by ISIS on the West in several years. But still, almost a week later, the group also known as Islamic State has yet to issue its trademark claim of responsibility for the horrific New Year’s violence in New Orleans.