Would a culture/presence roll work for asking the detective about the household, and who else might have been present at the time of murder? As, since the victim frequented fundraisers, I am assuming sufficient wealth to maintain a household staff? For that reason I thought perhaps link the roll to culture as related to social circles? I am not sure about presence either. Perhaps intellect would work as well, but since it feels like 'influential people know the ways of influential people' I thought presence might qualify?