Boston bombing suspect's friend implicates Tsarnaev, self in murders

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Boston bombing suspect's friend implicates Tsarnaev, self in murders
Law enforcement sources say police have evidence of a criminal connection between Ibragim Todashev and Boston bombing suspect Tamerlan Tsarnaev's involvement in an unsolved grisly triple murder in Waltham, Mass. CBS News' Bob Orr reports.
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