Phillipos attended high school with Tsarnaev at Cambridge Rindge and Latin School in Cambridge, Massachusetts, where they both live.

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Luis Vasquez went to high school with Tamerlan and later helped coach Dzhokhar's soccer team at Cambridge Rindge and Latin.

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Larry Aaronson, a retired history teacher and current photographer at Cambridge Rindge, said he never saw anything that raised red flags.

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