FBI takes DNA samples from home of Boston suspect's widow

BOSTON - Investigators on Monday removed bags of evidence including some containing DNA samples from the home in Rhode Island where the widow of suspected Boston Marathon bomber Tamerlan Tsarnaev has been living, according to a person familiar with the investigation.
FBI agents spent hours at the home of Katherine Russell's parents in North Kingstown, Rhode Island, and came out carrying bags marked as DNA samples, a person familiar with the case said.
Investigators are hunting for evidence that suspects Tamerlan Tsarnaev, Russell's dead husband, and his younger brother Dzhokhar Tsarnaev made and set off two bombs at the finish line of the race two weeks ago.
The Wall Street Journal reported on Monday that investigators have found female DNA on at least one of the bombs used in the attacks.
The FBI declined to comment on the matter.