Boston Bombing Suspects Investigated in Triple Murder

Police have "mounting evidence" that both Tsarnaev brothers are linked to an unsolved triple murder.
3:00 | 05/11/13

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Transcript for Boston Bombing Suspects Investigated in Triple Murder
Authorities in Boston city of quote mounting evidence that those two Brothers could be linked to another -- a triple murder on the anniversary of September 11. ABC's deal -- is on the Boston case again tonight. The chilling -- Can show up and awake on the memorial service. For -- -- what does backtracked. So many questions and that's why investigators tell us tonight they need definitive DNA testing. To even consider charging the surviving sir I have brother with murder with true this could really be something Jim wooten is tonight thank you.

This transcript has been automatically generated and may not be 100% accurate.

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