Prosecutors say the man who admitted trying to bomb Times Square boasted that he thought it would kill at least 40 people and said he planned to detonate a second bomb in New York city two weeks after the first.
The government included the details Wednesday in a court filing before Faisal Shahzad is sentenced next week. He faces life in prison.
Shahzad was arrested two days after his May 1 attempted bombing fizzled in a Times Square packed with tourists. The bomb he had packed into the back of a sports utility vehicle sputtered and did not explode.
The former U.S.-trained financial analyst pleaded guilty after confessing to investigators who plucked him off a plane as it was about the leave the United States.
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