IE 11 is not supported. For an optimal experience visit our site on another browser.

Female DNA found on Boston pressure cooker bomb


Investigators have taken a DNA sample from the wife of slain suspect Tamerlan Tsarnaev to compare with the female DNA discovered on the pressure cooker from one of the Boston bombs. The FBI is also examining whether or not Tamerlan Tsarnaev met with two men in Dagestan who are considered radical Muslims. NBC’s Pete Williams reports.