Adam Gadahn sounds like a mix between Baghdad Bob and Tokyo Rose.
Adam Gadahn had advance notice of 9/11 and posted this on the MSNBC board the night before the attacks:
http://web.archive.org/web/20010911215029/bbs.msnbc.com/bbs/msnbc-world/posts/oc/738258.asp
Lord Haw Haw would be a closer approximation. Just before the British strung him up for treason in 1946, he said, "In death as in life, I defy the Jews who caused this last war, and I defy the powers of darkness which they represent."
BTW, speaking of approximations, the treason charge was a bit bogus, since he was actually an American who had become a German citizen and never had been a British subject, although he carried a British passport.
One hopes Gadahn won't be captured alive. To judge from Leonie Brinkema and the twelve dumbest of greater Alexandria, Americans have lost the knack for approximation.