Search.

Another search.

One more search.

They've gotten a clue, but the scope was still too big.

That night, more than 120 vehicles were found to match the clue.

Huang He gathered all the men that he could within the Criminal Investigation Unit.

They worked with the traffic police and cyber police, summarizing the immense amount of data by verification and elimination to obtain useful information.

It was bright in the Criminal Investigation Unit.

Bai Muchuan's eyes were red from working late into the night, but he never left the office.

Fang Yuanyuan sent a message to Huang He every half an hour asking if there were any news.

Huang He could only give a bitter smile; he did not have time to send any consoling word…

When it was 1:00 a.m., Bai Muchuan's mobile phone finally rang.

He hurriedly pick up the phone, but when he saw the mobile number, his face turned grim.

"Hello?"

Immediately after, a sharp female voice came from the other end of the phone.

"What are you doing?