It's interesting going back and looking at google realtime search and seeing how the story broke.
It appears that @rawls on twitter was the first to call it http://goo.gl/6FMtV
It appears that @rawls on twitter was the first to call it http://goo.gl/6FMtV
Which almost makes sense.
[1] http://mediadecoder.blogs.nytimes.com/2011/05/01/how-the-osa...
@Obi_JohnKanObi #becauseoftwitterbeef we found osama bin laden
Twitter - 1 May 2011 18:12:31