Boston Bombing Brings Twist to Cold Murder Case

The stalled investigation into a gruesome 2011 triple murder in the leafy suburb of Waltham, Mass., has taken a dramatic turn in the days since two explosions ripped through the crowd during the final stretch of the Boston Marathon.

In the two weeks since those blasts erupted 12 seconds apart, FBI agents have begun working with prosecutors to interview family members and friends of the three victims in the unsolved Waltham slayings, law enforcement authorities tell ABC News.  Family members of two victims told ABC News they had been contacted by FBI agents about the case in recent days. The agents’ interest has been sparked by an overlooked connection between accused bomber Tamerlan Tsarnaev and one of the victims in the case, Brendan Mess.

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