So is it safe to say that this hypothesizes that the terrorists have the computer, and terrorists is the only place that Murtha could have gotten this "memo"
Yep... unless Murtha is laying claim to John Edward's miraculous 'channeling' talents to conure this Stoffel guy back from the dead.
(see FreeRepublic thread on John Edwards/trail lawyer channeling: http://www.freerepublic.com/focus/f-news/1167970/posts)