yes, i believe that, seeing as i got 2 clues from them from killing them for 3 hours (about 400 farmers). Even if you got lucky, i highly doubt you got that many. And 4 full sets of both trimmed and gold? Out of 13 clues, thats basically impossible. The chance of gettingb any black armor isn't that amazing, let alone full sets of trimmed or gold trimmed.