Anansi

Anansi is a trickster mentioned in the book Bobby Singer's Guide to Hunting aparently Bobby stumbled on to Anansi killing off a buch of people that were part of a murder cover up to kill a woman Georgiana Prious. He according to legend came over to America on a slave ship in the 1700's from Africa. Apparently after discovering Georgiana had been murdered for simply loving a man outside her social standing he sought to avenge her. He managed to kill all six women responsible. He discribed what he did to them as "just deserts".