this morning on world news now, hostage tragedy. the u.s. confirms a woman from arizona was killed by isis. the astonishing new details about what led to her death. on trial the man accused of murdering the american sniper. who will be called to the stand first as testimony in this high-profile case begins today. little league scandal. the championship from chicago s south side under investigation. did the coaches recruit star players from outside the neighborhood? and later in the skinny, the sudden career decision from jon stewart about his future on the dailey show. his comments and a surprise for fans. it is wednesday, february 11th. announcer: from abc news, this is world news now. good morning. i m sara haines. hello to you all.