New York (CNN) -- The man accused of attempting to set off a car bomb in Times Square considered other targets in and around New York before the failed attack, an investigator said. 

Faisal Shahzad, 30, pondered attacks on Rockefeller Center, Grand Central Terminal, the World Financial Center and Connecticut helicopter manufacturer Sikorsky, going so far as to case some of the targets, a senior counterterrorism official with oversight of the investigation said Tuesday. 

Dressed in a gray sweatsuit, free of handcuffs, Shahzad appeared before a federal magistrate on Tuesday afternoon to hear the charges against him. As he walked into courtroom, Shahzad gave a slight smile to his public defender, Julia Gatto. At the end of the hearing, Gatto requested that Shahzad be served halal food -- prepared according to Islamic dietary laws -- while jailed. 

Gatto did not object to the government's request that he remain in federal custody. He did not enter a plea, and Magistrate Judge James Francis set his next hearing for June 1. 

Shahzad faces five counts in connection with the attempted bombing in Times Square on May 1. He could face life in prison if convicted. 

The Pakistani-born naturalized U.S. citizen has been in federal custody since his arrest two days after the bomb attempt. During that time, he "has provided valuable intelligence from which further investigative action has been taken," the U.S. attorney's office said. 

After 15 days of questioning, Shahzad invoked his right to an attorney at Tuesday's hearing, a federal law enforcement official said. 
Where is that?
New York