Cambridge mosque connected to extremists

Officials tell CNN they may have identified the ISIS terrorist seen in the beheading video of American James Foley.

A U.S. official says they have been using "all means to identify the person," including voice analysis and meta-data from the video. But they still don't know if he's the same person seen in the Steven Sotloff beheading video.

CNN is also learning new information about Americans working for ISIS here in the U.S.

A Boston man now on the FBI's Most Wanted Terrorist list has ties to the same mosque attended by the alleged Boston marathon bombers. Several other known terrorists have attended the same mosque.

Deborah Feyerick has more OutFront.