>> did the u.s. kill hamza bin laden and if so why was it. >> i will have to get back to you on that one. >> but he's dead? >> that's my understanding. reporter: the state department put a $1 million bounty on his head. that's usually the first step before drone strikes are authorized to kill a terrorist leader. while the u.s. military routinely flies jets and bombers over pakistan, it does not give up airstrikes there, leaving some to speculate the cia killed ma'amo d killed hamza. the former ambassador to the u.s. received there is ambiguity about where he was killed. the u.s. knows where. why say somewhere instead of