stunning allegations surfacing over michael jackson s death. now his sister la toya is saying the king of pop was murdered. she claims she knows why. you can run, but you can t always outrace the bulls of pamplona, spain. we ll tell you what happened to four unlucky runners. and ferocious lightning won t keep endeavour on the ground. we ll tell you when the space shut cell set to lift off. hey there. thanks for watching hln. i m virginia cha. the u.s. ambassador to iraq just escaped a roadside bombing today. it happened as ambassador chris hill s convoy was traveling south of baghdad. the u.s. embassy says neither hill nor any other embassy personnel were hurt. the bomb exploded as the ambassador s convoy was driving through a province in southern iraq. the embassy says it appears the convoy was targeted. we ll have more information for you as it becomes available. health and human services secretary kathleen sebelius says the obama administration is not ruling out