C435 He Checked the Wound

Yuu Jin shook his head. "The person was completely covered, only their eyes were visible, so I didn't see their face. But I'm certain they're the serial killer."

Chung Yan frowned. "How can you be so sure?"

"I'm not just going on a hunch. I've already gone through all the cases of the victims in that serial murder case. The killer always uses a scalpel