Serial killer (2)

"You have to be kidding me?" No sooner Fu Shuyan finished speaking, Fu Qi Hong's eyes widened, and with his complexion turning blue from white he questioned, "Didn't we already catch the murderer and execute her? Why are you saying that the serial killer is still on the loose?" 

He made the murderer confess her crime and she even told everyone in the confession room how she killed the mers. Her confession was way too detailed for being a scapegoat. 

"It could only mean two things. Either the woman was an accomplice and saw everything the real murderer did or she was fed hallucinating pills," Fu Shuyan had investigated the matter long and hard before concluding. "Personally, I believe that it is the second case. No serial killer would keep an accomplice next to her lest they are betrayed by them."