in the elevator and the blood in the high-rise stairwell is the same blood type. If it came from the same person, 800 milliliters of blood loss should cause significant physical reaction." Officer Lu...so we didn't notice how dark it was.Deep…A faint muffled thud.We looked up at the car roof—something had fallen onto our car roof.In the blink of an eye, my brother slid his seat back in the driver's...