it's from a danish agent, code name clang, saying, "i'm so sorry but it wasn't us." the cia says the death is not storm's work. >> i thought it wasn't meant to happen. clang, he said, i'm so sorry about it. i said don't worry about it. just tell the americans big brother congratulations. >> two days later he learns more when he picks up a copy of the british newspaper "the telegraph." sprawled across the front page how america finally caught up with anwar al awlaki. can capture of a low level errand runner was the key break through to what led to the al qaeda leader's death. >> i froze when i read it. i was like, i had that ice in my stomach. i said that's my mission. the dates, the time period that he was arrested. young courier matches the young courier that i met.