Traces Of Female DNA Found On Boston Bomb.

Female DNA was found on at least one of the explosive devices used in April 15's Boston Marathon bombing, sources have said. Citing "officials familiar with the case," "there could be multiple explanations for why the DNA of someone other than the two bombing suspects" was uncovered that would not necessarily indicate complicity in the attack. For example, the DNA might conceivably have come from "a marathon spectator or a clerk who sold" materials that were ultimately used in the making of the bomb. However, police have not ruled out the possibility of an accomplice, and have not yet determined whether or not the DNA discovery indicates a woman's involvement in the attack. Authorities have visited Tamerlan's widow, Katherine Russell, an FBI spokesman confirmed Monday, and did collect a DNA sample. However, Russell has not been charged with involvement in the bombing, and is not a suspect at this time.
Huffington Post And CBS News.