A US Army veteran with an ISIS flag on his truck swerved around makeshift barriers and plowed into New Orleans’ crowded French Quarter on New Year’s Day,killing 15 people in an attack officials believe was carried out with the help of others.The suspect, identified as Shamsud-Din Jabbar, 42, a US citizen from Texas who once served in Afghanistan, was killed in a shootout with police after ramming the crowd.The attack, which injured 30 other people, took place around 3:15 a.m. (0915 GMT) near the intersection of Canal and Bourbon Streets, a historic tourist destination known for its music and bars where crowds were celebrating the new year.Police and political leaders vowed to capture any accomplices.For all the latest headlines follow our Google News channel online or via the app.With the perceived danger ongoing, officials postponed the Sugar Bowl, a classic college football game played in New Orleans each year on New Year’s Day. The game between Notre Dame and Georgia was put off for