Nagasaki Soyo - Slender hand. The other option would be Takamatsu Tomori (because of the CRYCHIC connection), but this makes no sense since she harbors no ill will towards Sakiko, while at this point in the story Soyo does.
"Sawney" Bean (sometimes also given as Sandy Bane, etc.) is a legendary figure, said to have been the head of a 45-member clan in Scotland in the 16th century that murdered and cannibalized over 1,000 people in 25 years.