Saher Macarius, another attorney for the Khans, said earlier this month they had no connection with Shahzad and told CNN his clients didn't know the suspect and did not give him money.

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Macarius, whose practice is based in Framingham, Massachusetts, has said the three men had been booked to fly from New York to Pakistan on June 6, using the same route Shahzad had booked before he was arrested trying to leave the United States.

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