Quest Blood on the Ice? Can't do it.

[Mattrello]

I've been playing for a good while now, and I decided I wanted to take up Ulfric's offer on that house in Windhelm. But the steward won't sell it until the 'unpleasantness' from the 'Blood on the Ice' quest is resolved. I've checked the net, and at no point during any day do I see the group of people in the graveyard, and none of the quest folk further down the line are forthcoming with any information. Any ideas as to how I can get the quest?

 

[Valamyre]

I have had the same problem. The official game guide say have to leave the city, travel somewhere else then return. After doing this 4 times the group should appear at night however I have done this a thousand times and still no group in the graveyard,