This Statesmen site claims "We found this note on a Web site being pointed at by social media users". Their post is dated 12:16PM.
The first notice of this suicide note was posted here, on this very thread. The link is http://www.freerepublic.com/focus/news/2454156/posts?page=593#593. You'll note the first notice with page link is post #593 by LdSentinal at 12:03:41PM. The second is post #594 by yourself, Deo volente at 12:04:12PM, and the third is post #595 by good old days at 12:04:15PM. All these prior to the Statesman article at 12:16PM.
Hmmmm. I wonder if "being pointed at by social media users" refers to FReeRepublic?
Actually, the first post of the URL was at #570.
Actually, FReeper “good old days” was the first to find the suicide note/manifesto while searching around for information on the pilot’s wife, Sheryl Stack. He/she copied and posted the url, but not as a live link:
http://www.freerepublic.com/focus/news/2454156/posts?page=570#570