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Boston bombs 'remote trigger'

US investigators have revealed the two bombs that went off at the Boston Marathon were detonated with the kind of remote control device used for a toy car.

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Family of bomb suspect's wife in 'absolute shock'

The wife of deceased Boston bomb suspect Tamerlan Tsarnaev and her family are "trying to come to terms" with the shock that he and his brother allegedly masterminded the attacks.

A statement read out by Miriam Weizenbaum, the lawyer for Katherine Tsarnaeva, said:

The reports of involvement by her husband and brother-in-law came as an absolute shock to them all.

As a mother, a sister, a daughter, a wife, Katie deeply mourns the pain and loss to innocent victims - students, law enforcement officers, families and our community.

In the aftermath of this tragedy, she, her daughter and her family are trying to come to terms with this event.

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