NNV.
The Berber was from Rimpel; he was the one who voted against Thorius. There's an oak tree there, which was associated with Thor by the Scandinavians, and the element thorium is named after Thor. But the patterns don't match Thorius.
Added 47 seconds later
Let's execute Thorius. We don't remember from whom we had evidence against him, and whether there was any at all, but they definitely are the key to the original clues.

