C286 Find the Murderer

He picked up Meng Bing's police uniform and hung it in the closet for her. Then he picked up the folder and walked out of Meng Bing's bedroom. He didn't forget to turn off the light before closing the door.

Entering the guest room opposite, Chen Rui opened the folder. Inside it was a serial killer case report!

There were thirteen dead people inside. From five years ago to half a month ago