Yuan Tiehe said in a low voice: "Later, I helped her back to the room and lay on the bed, took off her clothes, and after the same room, I fell asleep in a daze, and I didn't wake up until dawn, when my mother was dead." I really can't remember what happened, because I was very drunk at the time, I was already drunk when I toasted outside, and when I came back, I drank most of the pot of wine, so I was also drunk. ”

"Since you said you were drunk, I can't remember if you covered your mother's mouth and nose, so how do you remember to have sex with her?"

"It's... I remember... Anyway, I remember when I was in the same room with my wife, she didn't struggle to resist, and she was very submissive..."

Meng Tianwei stared at his eyes, he only saw confusion, but he couldn't see panic, and couldn't help muttering in his heart, could he really be telling the truth? Could it really be that he forgot to close the door when he helped Lin Si back, and both of them were drunk, and someone took advantage of their coma to sneak in and rape Lin Si, afraid that she would call and cover her mouth and nose, because Lin Si was weak and drunk by Yuan Tiehe, he couldn't resist at all, so he was covered to death? Or maybe someone has a grudge against Lin Si, such as Zhuo Xin, who took this opportunity to sneak in and cover her to death?

Meng Tianchu pondered, if this case was really like this, it would be complicated. asked, "You said you didn't cover your lady's mouth, is there any evidence?" ”

Yuan Tiehe was stunned: "Evidence? I was drunk and dazed, and I fell asleep when I was done, where can I find evidence? Anyway, I didn't cover my mother's mouth and nose, nor did I scratch her ** or inner thighs, I'm not a rude person, besides, on the wedding night, my mother was going to have sex with me, even if I poured her wine in anger, she wouldn't be unwilling to have sex with me. How could she resist me, how could I cover her mouth, and even if he screamed, what could I fear? I don't need to cover her mouth and nose to kill her. ”

Meng Tianchu thought about it, this fat man is reasonable, after she arrived in the Ming Dynasty, she had a deep understanding of the fact that her husband is a wife, so her husband wants to have sex with his wife, and wives who dare not say a word are probably rare, judging from the situation last night, this Lin Si is not like a woman who dares to roar in Hedong, so the scars on Lin Zi** and the inner thighs may still be caused by Yuan Tiehe, and the scars on the computer's mouth and nose are likely not to be done by Yuan Tiehe.

Since the scars on Lin Si** and the inner thighs were only subcutaneous bruises caused by kneading, and did not cause epidermal injuries, but only epidermal scratches on the mouth and nose, Meng Tianchu decided to check Yuan Tiehe's nails to see if there was any dander remaining. If there is, it can be proved that it was Yuan Tiehe who covered Lin Si's mouth and nose.

After examining Yuan Tiehe's fingernails one by one, no residue such as dander was found in the nails. Since the ancients did not know that the residue of dander in the nails could be a clue to solve the case, it was impossible to destroy the physical evidence by intentionally cleaning the nails.

Now, if it is determined that Yuan Tiehe killed Lin Si, there are two doubts that are difficult to explain: first, the deceased had obvious nail scratches on his mouth and nose, but there was no residual dander in Yuan Tiehe's nails; Second, Yuan Tiehe is Lin Si's newlywed husband, and when he was in the same room, he covered his wife Lin Si's mouth and nose in order to prevent his wife from shouting, and accidentally covered him to death, which is unreasonable; Third, if Yuan Tiehe killed Lin Si, it stands to reason that Yuan Tiehe would try his best to cover it up, especially on the key issue of whether the doors and windows were closed, he should have said that he forgot to close them at the beginning, and even opened the window, saying that it was hot, creating the illusion that outsiders would sneak in and kill people.

If it is rape and murder, then Lin Si's ** content test will be the key, but unfortunately DNA identification cannot be done, otherwise, it will be clear who the murderer is. However, the blood grouping of semen is equally important, which can exclude some suspects and narrow the scope of investigation.

Meng Tianchu took a blood sample from Yuan Tiehe, found a separate room, and immediately tested it.

Through the inspection of the contents, there is a large amount of semen, and the blood type is type A, unfortunately, after the test of Yuan Tiehe's blood type, the blood type is also type A, which means that this semen is likely to be left by Yuan Tiehe, if the semen blood type is different from Yuan Tiehe, then it is valuable, so it can basically be sure that it is rape and murder, and through the blood type test of the suspect, it can rule out the possibility of people with different blood types of semen. However, now that the blood type is the same, in this way, the semen in Lin Si's body is most likely to be that of her husband Yuan Tiehe.

Of course, there is also a possibility, that is, the blood type of the murderer who raped and killed Lin Si is also type A, so it will be troublesome, because the equipment that Meng Tianchu was injured cannot be tested for individual discrimination. To determine whether more than two people have ** on Lin Si, if ** has the same blood type, you can only use DNA technology.

Most of the PCR products of the y-str locus have only one band, and if more than two bands are found in multiple Y-STR loci in the content test, the line can be determined. However, Meng Tianchu came over and only brought a poor forensic evidence investigation box, and he couldn't do DNA testing.

In addition to the possibility of rape and murder, there are also revenge killings, etc., so the detection of ** contents, from the current point of view, has not played a role in excluding suspects and narrowing the scope.

When Meng Tianchu finished the test, the head-catcher Wang Yi and the others also came back, came in and reported that Zhou Mo and the others had been brought and waited in the living room, and there was a catcher guard, and it was strictly forbidden to speak.

Since it is possible that outsiders took advantage of Yuan Tiehe and Lin Si to get drunk and sneaked into the new house to kill Lin Si, then these people are all suspects, and they must be investigated. The first thing to investigate, of course, is Zhuo Xin, who has something to do with Lin Si and has a new brain.

Yuan Tiehe was taken out, and Zhuo Xin was arrested and taken to the new house.

When Zhuo Xin was brought, he didn't tell him why he wanted to bring him here, he had been to this place last night, and knew that this was Lin Si's new house, and he was brought in at this moment, his face was cloudy, he looked around, and asked, "What about Sisi?" ”

Meng Tianchu stared at Zhuo Xin's eyes for a long time before he said slowly: "At ten minutes last night, Lin Si was killed on the happy bed of this new house. ”

Zhuo Xin's eyes widened, he looked directly at Meng Tianchu, kept shaking his head, and forced a smile: "Master, are you joking?" It's not funny at all! ”

Meng Tianchu had been observing Zhuo Xin's reaction: "I'm not kidding, Lin Si's body is parked in the cellar ice cave of the Yuan Mansion at this moment!" ”

"Sisi! No, it won't! Sisi! I'm going to see Sisi! Zhuo Xin's face changed greatly, and he turned around and was about to run out, but was caught by the king at the door. Zhuo Xin struggled desperately, but he was a scholar, and he was invincible, how could he be these wolf-like opponents, and he was quickly pushed to the ground and couldn't move.

Zhuo Xin cried: "You let go of me, I want to see Sisi." ”

Meng Tianchu stared at Zhuo Xin and said coldly: "I will let you go to see it, but it is not an ice cave, but the underworld!" - When you're beheaded, you'll be able to see her. ”

Zhuo Xin immediately stopped crying and stopped struggling, because he was pressed to the ground, and his face was lying on the ground and couldn't move, so he couldn't see Meng Tianchu's expression, but he could feel that the situation was wrong from Meng Tianchu's cold words, so he struggled and choked up and asked, "Master, what's going on... What's going on? ”

"What's going on? Hehe, I was about to ask you what's going on? Meng Tianchu gestured to Wang Yi, Wang Yi grabbed Zhuo Xin's back collar and lifted him up, and then kicked him the crook of his hind legs, Zhuo Xin's knees weakened, and he fell to the ground, hearing Meng Tianchu's words, Zhuo Xin was a little flustered, and he opened his mouth but didn't know what to say.

Meng Tianchu said: "Okay, surnamed Zhuo, you don't need to pretend to be garlic, let's talk about it, how did you sneak into the new house and kill Lin Si?" ”

"Me? Kill Sisi? Do you suspect that I killed Sisi? Not me! After the conflict with Yuan Tiehe here last night, Lin Tianhu and I returned to the front of the banquet, we drank at the banquet outside, and never left, how could we sneak into the new house and commit murder? ”

"You've been out drinking, and you haven't been to your new house since?"

"Yes! Master Meng, Lord Zhixian, I beg you, let me go and see Sisi..."Zhuo Xin choked up and pleaded repeatedly.

Meng Tianchu thought about it, and still asked him to see the corpse, or to be able to observe whether he was a murderer or not, so he nodded at Cai Zhixian.

In terms of solving the case, Cai Zhixian of course acted on Meng Tianchu's decision, and said: "Okay, take you to have a look, I hope you can answer the master's questions truthfully after reading it." ”

Under the escort of Wang Zhu's first arrester, they came to the cellar.

Lin Si's body lay on a wooden bed, covered with a white sheet. Zhuo Xin's hands trembled, and he gently uncovered the sheets, revealing Lin Si's miserable white face, Zhuo Xin's body trembled violently, and then his body became weak, and he collapsed on the ground and passed out.

Meng Tianchu frowned, stepped forward to pinch the others, and it took Zhuo Xin a long time before he woke up, sat on the ground and cried.