According to Tazhayakov's account in the affidavit, while they were eating together about a month before the bombing, Tsarnaev told them he knew how to make a bomb.

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His associates exerted pressure on her to sign an affidavit confirming his account.

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But when Willey was ordered by a judge to give sworn testimony in the case, sources say her affidavit confirmed Tripp's account of unwanted advances.

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According to the affidavit, police interviewed Dube's brother, who told them Dube gave him this account of what happened: He waited in the woods wearing a ski mask, jumped out of the bushes, duct-taped Cable and put her in the back of his father's truck.

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