Detective John arrives at the scene. Body of a man lying there. Face down in the alleyway, motionless. Hands tied behind his back. Knife protruding from his chest. No signs of a struggle. Ceremonial dagger, expensive, foreign model. Onlookers murmur in the background. Crime scene needs securing immediately. Forensics team called in for help. Detective kneels down for closer look. Checking under the body now. Something catches his trained eye. Small piece of paper folded. Carefully removes it from grip. Unfolds it, inspects and reads.