The hunt for a pair of ISIS terrorists linked to the beheading of two Americans is over. U.S. officials say the two men were captured on the battlefield in Syria last month. They were part of a group of four jihadists from West London that intelligence experts called "the Beatles" because of their British accents. The best-known member of the group, "Jihadi John," was killed in an airstrike in Syria in 2015.
The fourth member remains in Turkish custody.