The detective sprinted down the dark alleyway, wheezing. A blood-curdling scream echoed through the night, sending chills down his spine. Beads of cold sweat formed on his brow as he turned the corner. His heart pounded in his chest, anticipating the gruesome sight that awaited him. The metallic scent of blood assaulted his nostrils, almost overwhelming. In the dimly lit alley, a lifeless body lay motionless, its throat savagely slashed. The investigator kneeled down, examining the scene with intensity. Gruesome and methodical, he thought, a serial killer's handiwork.