Wasn't that how they caught the Unabomber? I saw a documentary about the guy who caught him by using this sort of analysis, although his method was quite analog (scanning through written letters and Unabomber's correspondences to the press).
The Unabomber was turned in by his brother, who recognized some unique phrasing in the released manifesto and reported it to authorities.
EDIT:
After looking, it looks like the brother turned him in after having this sort of analysis done to confirm his suspicions. So it does look like there's a tie to the story, but the analysis wasn't done blindly in that case.
