"Xiao Cong, do you remember what we found on the female deceased's face when we were observing her body?" Qiu Lan glanced back at the person behind her, her eyes meaningful.

"Face?" Xiao Cong lowered his head and thought for a moment, and suddenly thought of something, "There is acne, and the deceased was also treated with beryllium bromide sodium carboxytin ointment before his death. ”

"That's right. Qiu Lan nodded affirmatively, her eyes bursting with a little light, "There is an ingredient in this ointment that is insoluble in water and easy to adhere. ”

She pursed her red lips, her chin raised slightly, and her voice was softened, "In other words, although there is no water in the fish tank now, there may still be some plants inside, stones, and even glass walls." ”

"As long as we detect this substance inside, the murderer has nowhere to escape. ”

The forensic personnel in the appraisal room listened to Qiu Lan's analysis and judgment, and couldn't help but have some admiration in their hearts.

After bringing the things to collect physical evidence, Cao Fan and Qiu Lan went to the house that had been cordoned off by the police to collect information.

An hour later, they appeared in the interrogation room of the Criminal Investigation Building on time with the final result, and happened to meet Xu Chengyan and Xiao Tiao standing outside the door melancholy.

"Officer Xu, Xiao Tiao. Qiu Lan pursed her red lips and nodded slightly to greet the two people in front of her, "How is it, did you ask any clues?"

"Doctor Qiu, Expert Cao, it's you. Xu Chengyan frowned, his expression solemn, "We haven't gotten any useful confessions yet." ”

"I have received the report from you before, and I have also raised the relevant questions to Li Gang, but he has been quibbling, only saying that Xiaocao has indeed been to his house, and he accidentally fell and injured himself, and he doesn't know anything else. ”

"No way. Qiu Lan lowered her eyes and sharply rejected the suspect's statement, "My appraisal report clearly states that the multiple injuries on the deceased's body were caused at different times, and she was abused for a long time, at least a year. ”

However, the evidence of a mere report on the injuries of the forensic medical department is too weak, and in court, the murderer can find a reason to defend himself, and on the basis of the statement that the suspicion is attributed to the defendant, it is completely impossible to convict the murderer.

Therefore, Xu Chengyan really has no way to take Li Gang for the time being, but Qiu Lan has the most critical evidence in his hands.

"Officer Xu, don't be too disappointed. Qiu Lan hooked the corners of her lips with deep meaning, and glanced back at Cao Fan's Xiaocong behind her, "We went to the suspect's house again just now and found very important evidence. ”

"With this evidence, we can get him to the law. ”

The leaders of the three giants of the criminal investigation department walked into the cold interrogation room with serious faces together, and Li Gang was sitting on the interrogation bench with his head lowered, his hands clenched in front of his chest, and dense fine sweat on his forehead.

"Officers, what do you have to ask, I have already told everything I know, and the rest really doesn't care about me, really, you believe me. He kept pursing his lips, his Adam's apple rolling up and down uneasily.

"Anything else?" Qiu Lan pretended to frown deeply, her red lips pursed lightly, "Do you mean the fact that the female deceased Xiaocao drowned in the house you rented?"

"Drowning, drowning?"

Listening to her words, Li Gang lowered his eyes in a panic, his eyes were rolling, and his trembling voice revealed his weakness, "Officer, what are you talking about, I don't know." ”

"I told the officer just now. He raised his eyes in a hurry, hurriedly pointed at Xu Chengyan, and quickly looked away, "Xiaocao, Xiaocao did come to my house to play, no, but she." ”

Before he could finish speaking, Qiu Lan slammed the table in front of him, stared coldly at the person in front of him, and slowly spoke, "Come to your house to play?"

She raised her eyebrows, her tone full of questions, "As far as I know, you are fifty-four years old this year, a single male, childless, Xiaocao is an orphan, sixteen years old, what is she playing with you?"

Qiu Lan, who was heavy-faced, deliberately raised her voice and gradually increased the speed of her speech, trying to create a violent sense of oppression for the suspect.

"She, she. Li Gang stared at the ground with a worried expression, and muttered hastily in his mouth

"You don't have to explain, I'll explain it for you. Qiu Lan took out all the physical evidence photos taken at the scene and opened them in front of him one by one, "The things on this are all grassy, right?"

"You adopted her, eight years ago. ”

"I, I didn't. Li Gang shook his head hurriedly, desperately denying it.

But Qiu Lan didn't pay attention to him at all, but displayed the information in his hand in front of him one by one, breaking through the defense line in his heart little by little.

"This is a baseball bat found at your house, with grass dander on it, this is a board brush, and there is grass dander on it, you hit her with these things, didn't you?"

"Did you accidentally kill her by mistake when you hit her!" Qiu Lan raised her voice and gradually approached Li Gang, her sharp gaze slammed into him coldly and hard.

"No, it's not, it's not. Li Gang shook his head frantically, his hands kept trembling, "You, you can't doubt me so much, I just said, I said it." ”

"Xiaocao didn't kill me, no, she fell and injured herself when she was playing at my house before, those, those things, all, they are all other women's, not hers, no. ”

Repetitive movements and words, pale eyes, and a look of weakness.

Looking at the scene in front of her, Qiu Lan had already made a judgment in her heart.

She slowly straightened up, regained a calm expression, looked at the person in front of her indifferently, and said in a low voice: "Li Gang, you don't have to pretend anymore, I know everything." ”

"There's a fish tank in your house, and you just pressed the head of the grass into it and drowned her alive. Qiu Lan pursed her red lips and leaned lightly against the edge of the table, her tone not rising or falling.

"Even if you deny it, it doesn't work, before Xiaocao died, she had some acne on her face, so she treated it with ointment, and unfortunately, when you murdered her, she happened to rub the ointment, so some of the ingredients in the ointment remained on the crown grass leaves in the fish tank. ”

She took out the photo of the fish tank and put it on the table, then slowly pushed it in front of Li Gang, and said coldly: "This is the fish tank." ”

"No, it's not. Li Gang stared at the photo with frightened eyes, and kept muttering, "Don't ask me again, I didn't kill Xiaocao, and it has nothing to do with me." ”

"It doesn't matter if you don't admit this evidence, anyway, I've already pushed out the facts. Qiu Lan lowered her eyes, clasped her hands in front of her chest, and moved her eyebrows slightly, "It's you, you usually keep beating and scolding Xiaocao, and on the day of the crime, you were furious." ”

"In a hurry, you killed Xiaocao, you pressed her into the water, she kept struggling, struggling painfully, but you didn't relent, you just stood by and watched her swallow. ”

"No, it's not like that! It's an accident! I didn't kill her!" Li Gang gasped and roared hoarsely.

The truth has finally emerged.