ASSOCIATED PRESS, DELHI CA: Deputies found Aurelia Lange lying on the bathroom floor, her decapitated head by her side. Her teenage son was nearby, naked, covered in blood and reading a Bible. Investigators believe David Lange cut off his mother's head with a kitchen knife, but they don't know why. "This is really weird because there's no history [of violence] on this guy at all," Assistant Merced County Sheriff Henry Strength said.