WASHINGTON - Sources say that female DNA has been found on a fragment from one of the bombs that exploded near the finish line of the Boston Marathon, CBS News reports.
It's not yet known who the DNA belongs to.
"Katherine Russell, the widow of accused bomber Tamerlan Tsarnaev, is not a suspect in the bombings and has not been charged in the plot. However, FBI agents met with Russell at her parents' Rhode Island home Monday to collect a DNA sample," CBS News reports.
Investigators say they will now analyze both DNA samples to determine if she ever came in contact with that device, according to CBS News.
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