NEW YORK — Investigators of the failed car bombing in Times Square are looking for a money courier they say helped funnel cash from overseas to finance a Pakistani-American's preparations to blow up the crude gasoline-and-propane bomb in the heart of New York, a law enforcement official told The Associated Press. Investigators have the name of the courier who they believe helped Faisal Shahzad pay for the used SUV and other materials to rig up a car bomb that would have caused a huge fireball in Times Square if it had gone off, the official told the AP. The official didn't know how much money may have changed hands. The official spoke on condition of anonymity because of the sensitivity of the investigation. U.S. law enforcement officials traveled to Pakistan — where Shahzad spent five months before returning to the U.S. in February — to question four alleged members of an al-Qaida-linked militant group. Investigators are trying to trace his movements in his homeland.