C80 Third death

When Qiu Shi came back, he looked relaxed, as if I was the only one there. "You calculated correctly, there are indeed traces of pressure and slight wear on the two sides of the handle of the key."

"Pah!" "Pah!" Leng Tieyin clapped twice and stood up, saying, "Surround the motive, bypass all starting points, and only talk about the murderer. Investigate this Director Liu