Here are a few of his posts after the 2nd newspaper regarding the sheriff. Was he talking about himself, or is it obvious that he wasn't? And if I'm not mistaken, Hugh said that he didn't kill anyone; this could be a fake, of course, but if not, it's strange that Ment didn't deny it if he was the Sheriff.
/post/502692/
/post/502783/
/post/502808/
oh, it really doesn't say whether the attempt succeeded or not, so never mind then, unfortunately.
