Authorities said Friday that a Boston man who wore a bulletproof vest on a plane and had knives and other weapons in his checked bags also had manuals stored on his computer detailing how to kill people and schedules showing when kids would arrive and leave from Japanese schools. The disclosures came during a court appearance by suspect Yongda Huang Harris during which US Magistrate Judge Paul Abrams declared him to be a flight risk and ordered him held without bond.
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