Guys, all this talk about Jster is too focused on this latest post. Now that we have two (technically three) posts we need to be also looking at how he (and any other suspects) acted in the first post. Seeing as no one picked up on anything during the first post, I doubt there is anything to suggest he is.

Edit: IMO I feel Nat's culpability follows through the posts (e,g, the fact he's a loner rings alarm bells when taken into account with what has already been said, it seems to fit the killer stereotype) which is why my vote remains on him.