` ` David was a warrior when he needed to be , and also a hero , '' James Dean tells us . Libyan branch of ISIS claims responsibility ; names terrorists . American security contractor is among the terrorists and five Americans killed .
`` David was a warrior when he needed to be , and also a peacemaker , '' James Berry tells CNN . Libyan branch of ISIS claims responsibility ; names attackers . American security contractor is among five foreigners and five Libyans killed .