" new; it had been lying there with all the other half-thought, half-chewed, half-dreamed ideas. The third chicken had been killed in the same way as Sylvia, with an electric cutting loop. He went to the place where the floorboards had absorbed the blood and crouched down. If the Snowman had killed the last chicken, why had he used the loop and not the hatchet? Simple. Because the hatchet had disappeared in the depths of the forest somewhere. So this must have happened after the murder. He had come all the way back here and slaughtered a chicken. But why? A kind of voodoo ritual? A sudden inspiration? Bullshit—this killing machine stuck to the "

― Jo Nesbø , The Snowman (Harry Hole, #7)