Kill 8 Razormane Geomancers, 8 Razormane Defenders, and Kreenig Snarlsnout. Then bring Kreenig Snarlsnout's Tusk to Thork at the Crossroads.
One of my scouts witnessed an attack on a caravan from Durotar, [player]. The culprits are indeed the Razormane tribe of quilboars. One of the quilboars in particular is leading the raids: Kreenig Snarlsnout. He was seen northeast of here, just south of the road from Durotar. If the threat is to be ended, then Kreenig must die.
To be sure the attacks cease, though, I say we add insult to their injury. Kill Kreenig along with more of their tribe, and return to me when you have his tusk.