C1009 Proof of Absence

The suspicion on Zhou Nanguo, who had the highest possibility, was eliminated, and everyone was surprised.

"It seems that we have to look for other contacts." Jian Chenyi said with some disappointment.

Zhou Nanguo was released, and it was almost midnight in the office.

Most of the people outside had already gotten off work, and only a few people from the Unit 9 were still there