The three people arrested in connection with the Boston Marathon bombings were Dzhokhar Tsarnaev's college roommates, according to NBC News.
The US news network added that the trio are suspected of removing items from Dzhokhar's dormitory room.
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The boy was found unconscious and in cardiac arrest and was rushed to hospital where he died.
The victim, who was wearing her uniform at the time, was found knocking on doors nearly four hours after she was abducted.
There will be gales across Scotland and northern England this morning, but these will gradually ease through the afternoon.