Rimpel is Vinta. And why did he reveal himself? I don't see any reason to doubt it yet.
So, what are the remaining possibilities? Sheriff – one. It's clear that Sumrak and the Knight are the other two. Why are the Pianist and MMD ruled out? It's unclear. Hos said it was based on the newspaper, but I didn't understand the logic. After all, Pali has never been blocked by either of them.
Now we need to figure out who the Sheriff is. It's very unlikely to be Pali; I don't see any reason to doubt that. :)
