C79 Profoundness

Exhausted, Zhang Bufan slumped into the chair. It was deep into the night, yet he persisted, the light still on as he sifted through the crime scene evidence and clues he had gathered in recent days, piecing together the murderer's psyche.

But the suspect remained elusive, slowing the investigation to a crawl.

He massaged his eyelids, fighting to stay focused