I can think of several reasons the wolves killed
Eomer. There's what
Fin said - that they might have thought
Eomer to be the Hunter. Or maybe they thought he was the Seer. Another possibility is that they thought the Seer might dream of him. Finally, they might have just wanted to get rid of a good player who wasn't on their side.
Typically, the wolves are looking for the Seer right now. So there might be
some stock in looking at what
Eomer said yesterDay that might have made the wolves think he was the Seer. We all know it's overwhelmingly unlikely that the Seer will dream of a wolf on Night 1, but for some reason the wolves often seem to forget that and think they've found him/her already. Still, if one or more of the wolves is an experienced player, I find it unlikely that they would have made such a mistake.
Overall, I'd rather focus on the voting record. There isn't much of one now, but at least the wolves have given us the information that both our top suspects yesterDay were innocent.
I'll re-read yesterDay's happenings and see if I can come up with some suspects...
EDIT: cross-posted with everything since
Form's last post
EDIT2: changed "Ranger" to "Hunter" - thanks for pointing out the mistake