Lennart Persson was arrested outside his shed in his parents' garden. Inside were stuffed animals piled on the bed, along with torn photographs and pieces of cloth with blood that he had saved from the murders of his foster sisters Anna Norell, 19, and Camilla Livfendahl, 34. Lennart cannot explain why he wants to drink blood and eat human flesh. Nor does the forensic psychiatric investigation provide any clear explanations.