C77 Who is the murderer

"I …" Bai Yiyi pretended to be hesitating as if she wanted to say something. She raised her head and glanced at Yan Ling. Then, as if she was afraid, she lowered her head immediately, not daring to say another word.

Snow Cherry seemed to be very anxious. When she saw Bai Yiyi raise her head and look in Yan Ling's direction, she immediately stood up and pointed at his nose