Xu Sa dipped a cotton swab in the potion, and was about to step forward to help Su Tong treat the wound.

"No, you don't." Su Tong frowned, when she was arguing with Shang Minghua before, her nerves were too tense, and she didn't notice that she was injured at all, "Don't change the topic, answer the questions I asked you first!" ”

Xu Sa's cotton swab was held in the air, looking at Su Tong's stubborn appearance, and sighed helplessly, "I didn't say that I wouldn't tell you, what do you want to know, after I finish giving you medicine, I'll tell you that it's not okay?" ”

Seeing Su Tong's suspicious look, Xu Sa smiled, "If you don't take medicine again, you will really have a scar on your neck, it's not good-looking." ”

"I'll do it myself." Su Tong frowned and reached out to grab the medicine and cotton swabs.

"Nope." Xu Sa turned her hand to avoid her outstretched hands, "Your eyes are not on your jaw, and the wound is on your neck, why did you come by yourself?" ”

Su Tong pursed his lips and didn't speak, but he didn't retreat, and the two confronted each other silently.

"Hurry up, don't force me to be hard!" Xu Sa narrowed his eyes and raised his chin at her, "Raise your head." ”

"Xu Sa, if you dare to pretend to be confused with me after taking the medicine, you see how I clean you up!" Su Tong gritted his teeth angrily, and after speaking, he raised his chin angrily, exposing the wound on his neck.

"Don't worry, I've always been a man of words." A smile flashed in Xu Sa's eyes.

Use a cotton swab to disinfect her first, and then rub it with medicinal wine, Xu Sa's movements are very gentle, and his expression is serious and focused.

Su Tong looked at Xu Sa's side face with his peripheral vision, and he was a little distracted for a while, and he didn't even know when the wound was treated.

"How's that, do you think I'm more handsome than before?" Putting away the cotton swab and medicinal wine, Xu Sa winked at her.

Su Tong woke up like a dream, and staggered his gaze awkwardly, "Narcissistic." ”

She was the same just now, how can she be distracted when she looks at it!

Unconsciously touched her cheek to confirm that the temperature on her face was normal and there was no redness, and she felt a little more at ease.

"Now, it's time for you to tell me what's going on, right?" Su Tong straightened his body and looked at Xu Sa with his arms crossed.

Now that I think about it, as far as Zhou Li's reaction after Shang Minghua was arrested, it seems that she is the only one who doesn't know about this matter.

She didn't understand why Xu Sa was hiding from herself, and how he got into her room unnoticed.

Thinking of this, she looked at Xu Sa's eyes and deepened a little, "Xu Sa, let me tell you, if you dare to perfunctory me this time and prevaricate nonsense, I will make you regret it for the rest of your life." ”

"Huh." Xu Sa laughed dryly, he hadn't seen Su Tong look so serious for a long time, and he was still a little uncomfortable.

"First question, what's going on with the news in the newspaper that Shang Minghua said?" Su Tong snorted coldly and asked.

Xu Sa pulled a chair aside and sat down in front of her, "Do you remember what your grandmother said when we investigated at Sun Na's house that day?" ”

"Yes." Su Tong thought about it and nodded.

She still remembered that it was in Sun Na's house that Xu Sa began to become a little mysterious, and she tried him several times without asking for results.

"Remember, my grandmother said she had read in the newspaper that the Famous Orphanage was recruiting volunteers. At that time, I wondered if the other two deceased had also become volunteers through the same channel. ”

At that time, he immediately asked Li Hua to investigate, "Because it was just a conjecture of mine at that time, I didn't tell you." ”

"And then?" Su Tong raised his eyebrows, "Later, I asked you more than once, don't try to quibble." ”

Xu Sa touched his nose, "After Li Hua's investigation, not only did the first two deceased know about the recruitment of volunteers in this way, but also in the newspaper as of the third issue of the case, there are still people who publish the news of the Mingyang Welfare Institute on it. ”

"Do you suspect it's the murderer?" Su Tong frowned, "This guess is too risky, maybe it's someone else from the welfare home." ”

"I knew you would say that." Xu Sa smiled bitterly and shook his head.

He knew Su Tong too well, so if he knew that he raised this suspicion and the method later, Su Tong would definitely not agree.

Therefore, instead of having an argument with Su Tong, he would rather hide it from her first.

In this case, in the end, if the murderer is not caught, nothing will happen to you.

If he was caught, it would be worth it for him to be scolded by Su Tong.

Fortunately, in the end, it was the second outcome.

Thinking of this, his heart also breathed a sigh of relief.

"And then, what did you do without me?" Su Tong gritted his teeth and asked.

"At that time, I had two guesses." Su Tong looked on his face and said seriously, "One is that the recruitment advertisement in the newspaper is from the murderer's hand, and the other is that the murderer will pay attention to that recruitment at any time." Of course, from the bottom of my heart, I prefer the second option. ”

"As you said, the murderer is likely to be the person who committed the orphanage case eighteen years ago, so after so many years, he has not been arrested, and he will definitely hide in a corner, quietly paying attention to the news related to the orphanage."

"So, at that time, I asked Li Hua to put an advertisement in the newspaper......"

The murderer had been in and out of the Crime Squad twice before, which was a provocation to them, which meant that he was very self-assured.

If at this time, a mysterious person suddenly jumped out and said that he knew everything he had done, the murderer's reaction can be imagined.

"For a week in a row, the newspaper advertisements changed from those who were previously in the know to those who were ridiculed." Xu Sa propped up his jaw, "Sure enough, Shang Minghua took the bait and never reappeared." ”

"Aren't you afraid that such a provocation will provoke him?" Su Tong was a little stunned when he heard the back.

Just because, Xu Sa's courage is too big.

Xu Sa shook his head at her mysteriously, "Don't be afraid." ”

"Why?" Su Tong wondered, "The murderer's emotions and mentality are unstable, and it is common for him to be provoked. ”

"Because I believe in you." Xu Sa suddenly hooked his lips, "You have done a psychological profile of the murderer, so I am sure what he will do after he takes the bait." ”

"......" Su Tong blushed, and deliberately said in a rough voice, "It's useless to pat on the back, and then go on!" ”

"Hehe, I mean really." Xu Sa leaned towards her, deliberately lowered his voice and said, "According to your analysis, my provocation will make the murderer feel that he is insulted, and then prove himself ......."

And the best way for him to prove himself is to turn his attention to his real target, which is Su Tong.

"That's it."