What level are you at? I don't remember them being that much of a pain. You could try using a bow or a crossbow to nail them when their running so your DK can catch up to them and start wacking them. hmm..or you could use some kinda spell. And i know the part your talking about..and they are REALLY hard in that particular spot..you could try sneaking in a bit to only attract one's attention...kinda walk away from the general mayham then get out of sneak mode, kill it, and then repeat the process.
