C681 Linkage Causal?

Jiang Huaibo said that according to the clues he provided, the police quickly found the professor's head in a tunnel in front of him and his classmates.

On the morning of the third day, the whole family of the professor and his classmate went back to the train station. When they saw Jiang Huaibo, the old professor smiled and waved to him, then turned around and walked back alone