An unsolved triple murder in the Boston suburbs is getting a closer look in the wake of the marathon bombings. One of the victims may have been a friend of bombing suspect Tamerlan Tsarnaev. That's prompting authorities to revisit the 2011 case.
The murders took place in Waltham, Mass. On Sept. 12, 2011, police responded to a house in the leafy suburb a few miles west of Boston.