"A person who doesn't speak much might want to kill someone too." Qin Mo's tone was indifferent. "Sometimes when grudges accumulate to a certain point, extreme thoughts might appear. However, there's one point to note: The murderer might not ask her to be his accomplice for Chen Hong's murder."
Bo Jiu was enlightened. "The other victims."
"That's just my guess. We need to find evidence to prove my theory." Qin Mo stretched out his hand and took the phone at this side. He typed the last sentence the murderer sent. "I've sent you the things you need to do. They are in your mailbox. Open it and take a look."
"Mailbox? Bo Jiu narrowed her eyes. "This…"
Qin Mo's tone remained the same. "He might be referring to the mailbox in school. Normally, no one used this kind of mailbox so it's normal that the police forgot about it."