Breaking news shows that female DNA was found on the bombs used in the Boston Marathon explosions on April 15, 2013.
Wall Street Journal:
Investigators have found female DNA on at least one of the bombs used in the Boston Marathon attacks, though they haven't determined whose DNA it is or whether that means a woman helped the two suspects carry out the attacks, according to U.S. officials briefed on the probe.
The officials familiar with the case cautioned that there could be multiple explanations for why the DNA of someone other than the two bombing suspects—Tamerlan Tsarnaev and his younger brother, Dzhokhar—could have been found on remnants of the exploded devices. The genetic material could have come, for example, from a store clerk who handled materials used in the bombs or a stray hair that ended up in the bomb.
Whether this means a female was involved in the attacks or not is still under investigation.
The question of whether others were involved or not, has been prominent, especially after a top ranking GOP Representative, chairman of the House Intelligence Committee, Mike Rogers, reportedly said "There are clearly more persons of interest, and they’re not 100 percent sure if there aren’t other explosives."
More:
Rogers’ comments came ahead of a Wall Street Journal report Friday that the FBI has concluded the bomb makers “likely had additional training or expertise.”Captured bombing suspect Dzhokhar Tsarnaev reportedly told investigators he and brother Tamerlan made the devices using instructions from the Al-Qaeda magazine “Inspire.” Tamerlan Tsarnaev died last week after a gun battle with police.
Those assertion by Dzhokhar Tsarnaev came into question after it was reported that there may be more accomplices because evidence showed that a line-of-sight detonation was used for the Boston Marathon bombings, which was not part of the Al-Qaeda magazine “Inspire" instructions.