The rain lashed against the windowpanes. A low rumble of thunder echoed through the room. Detective Miller sat hunched over his desk, a weary sigh escaping his lips. The air hung heavy with the scent of stale coffee and despair. The victim, a renowned artist named Julian Carter, lay sprawled on the canvas-strewn floor. His once vibrant eyes were now glazed over. A single, crimson stain marred the pristine white of his shirt. The killer, a figure shrouded in mystery, had left no trace behind. Miller knew this case would be a challenge.