The man named as the attacker in Wednesday morning's massacre on New Orleans' Bourbon Street that left at least 10 dead and dozens injured was Houston-area resident Shamsud-Din Jabbar. The 42-year-old was identified as the driver of the truck that plowed into the crowd of New Years Day revelers around 3:15 a.m.

In Texas, Jabbar’s family, childhood friends and those who watched as Bourbon Street turned into a deadly nightmare are searching for answers. Why did this middle-aged Army veteran — an IT worker for Deloitte who neighbors describe as quiet and mild-mannered — pledge allegiance to ISIS,

Shamsud-Din Jabbar, the Texas man accused of crashing a truck into New Year's Day revelers in New Orleans, killing 14 and injuring dozens, was an Army veteran struggling to get past a recent divorce but who showed no signs of anger just weeks prior to the attack,