Neti:
I have a basic idea of your situation... Could I take a look at the Contract? This is the mark of the Silver Scale guild. Trader Rolento is the only Dwarf in this area who belongs to that guild... However, he would never supply weapons to the ol mahums...
I'm sure there must have been a misunderstanding! Or, maybe someone framed him... If you met him you would realize that I know what I'm talking about. Please! Go and meet Rolento at the south entrance of the Wasteland, you'll realize he would never have done such a thing.