Investigators discovered female DNA on the remnants of the bombs used in the Boston Marathon attack, according to a report.
The discovery does not mean a woman helped the bombers, because the DNA could have come from someone involved in selling or manufacturing the bomb components or from something like a stray hair, The Wall Street Journal reported.
But federal agents are taking the discovery seriously and want to know if the DNA can be linked to the wife of one of the terrorists, bomber Tamerlan Tsarnaev.
The FBI has reportedly sought a DNA sample from Katherine Russell, Tsarnaev’s widow — and were last night spotted carrying a bag labeled DNA from the home in Rhode Island where she has been staying with her parents.
Russell and the young daughter she had with Tsarnaev have been holed up at her family’s home since he was killed in a shootout with police four days after the April 15 attack.
Russell has not been charged, and her lawyer said she is doing all she can to aid the investigation.
Tamerlan and his brother, Dzhokhar, are accused of carrying out the attack, which killed three and wounded more than 260.