Chapter 2 Suspects with Obsessive-Compulsive Disorder

There are a lot of teacher residences in this lot, though

"I just want lemon tea." I'm not particularly interested in planting flowers, and the only thing I can feed is Mai Dong, who is very good, "By the way, boss, just now you said in the car that Zheng Min was investigating the tracking case, where did she get the news?" "If Zheng Min was involved in the investigation, then this case would not look simple.

"It started with two murders, and both of the deceased were women involved in the body trade. Because of the particularity of the deceased's identity and the fact that the deceased did not have any belongings on him when he was found, the police only regarded it as a night robbery and did not pay special attention to it. "The Boss took lemon tea from the fridge and gave it to me.

I took the lemon tea and asked, "Then Zheng Min felt that something was wrong to have doubts about these two cases?" ”

The boss found a brown paper bag from the bookshelf and handed it to me, and motioned for me to open it: "The detailed analysis is in the paper bag, you can see for yourself in a moment." Let me first briefly address the doubts in two cases. ”

The boss first took out two copies of the information he wanted from the middle of the brown paper bag, which clearly wrote all the details of the two ah, and the boss spread out a man on the table for comparison: "Both cases happened at night, you know this special profession, their work time should generally be in the evening, and the end time is in the morning of the next day, unless there is a special reason, 2 o'clock in the morning should belong to them, well, work time." The boss was a little embarrassed when he spoke, he saw me cover his mouth and snickered, pretending to want to beat me with information, but immediately returned to the story of the case: "According to this time, they should stay with the customer, and it is impossible to walk on the street alone." ”

"It could be that they didn't have business that day and got off work early." I thought about it for a moment and said a possibility.

Zheng Min thought this was the case at first, but when he saw the photo of his death, he denied the possibility. The boss took out the photos of the two deceased, "The two deceased don't look like women without guests no matter how you look at them. ”

I carefully examined the faces of the two deceased, and even if they were taken after their deaths as reference photos for the on-site investigation, I could still see the faces and graceful figures of their friends before their deaths. Not to mention the bright and moving appearance on the photos of the ordinary lives of the two deceased that Zheng Min specially found later.

"Neither of the deceased was in their menstrual period at the time, so there is no special condition due to physical reasons." The Boss added.

"Did the two deceased show signs of pregnancy?"

The boss shook his head: "No, and Jeongmin later investigated that the two deceased were not women who did this profession, they should have been forced by life to come out occasionally at night to subsidize the family, and there were no regular guests." The first victim was a student, and the second victim had a fiancΓ© back home, and neither of them let their families know that they were engaged in such a job. Therefore, the possibility of their boyfriends committing the crime is also ruled out, and the boyfriends of the two deceased have clear alibi at the time of the deceased's death. ”

"It's not a regular guest, it's not a boyfriend or family member, it can only be inferred by the police that it's a night robbery." I continued to flip through the two documents when suddenly a line in the autopsy report caught my eye. When the medical examiner performed an autopsy, he found lacerations on the deceased's lower body. I opened another autopsy report, and sure enough, the same sentence appeared in it. "The deceased was raped by robbers before he died?" I was shocked and said it directly.

The boss asked me to continue to look down, and the final results of the forensic examination were that the deceased was forced to have sex after death. I looked up at the boss, and the boss nodded: "Both of them, and that's the second point that makes people feel strange." If it is an ordinary robbery and homicide case, if the robber is interested in the victim, he will choose to force the victim to have sex first, and then kill the victim in order to eliminate the certification. But the robbers in the two cases are clearly different, with the suspect killing first and then choosing to have sex with the victim. There are only two possible explanations for such a thing, one is that the suspect is a pervert and that having a relationship with a corpse would give him satisfaction from it; Another possibility is that the suspect himself has some kind of psychological defect, and he does not dare or refuse to have relations with living people. However, in either case, it shows that the suspect is pretending to be robbing to cover up his perverted penchant. ”

I flipped the practice report to the back: "However, the suspect did not leave any DNA traces other than the tear marks on the lower body of the deceased, which indicates that the suspect has some understanding of the law and biological aspects." In other words, even if you don't understand it, you have been preparing for a long time to commit the crime. However, the absence of DNA means that we do not know if the suspect is the same person, and it is difficult to determine whether the crime was committed alone or in a group, or if multiple people are unrelated to each other. ”

Regarding this, Zheng Min later went to the place where the two deceased did business before their deaths and got additional information. At that time, when Zheng Min was chatting with the two deceased's colleagues who were familiar with each other, he found that even the deceased had been pestered by a small man two days before his death. Although the man was not seen on the day of the death of the two deceased, the previous witnesses had seen men with the same appearance and characteristics pestering the deceased. ”

The two deceased died two months apart, and the time between the crimes was two months, is it the suspect's crime cycle? I thought to myself.

It is worthy of growing up with me as the boss, and when he saw me frowning and sending something first, he had already guessed my doubts, and said: "There are more than these two cases." The Boss pulled out more information from the brown paper bag.

More cases? I looked at the bound text that fell out of the brown paper bag, and roughly counted that there should be 7, counting the two I just saw, it should be a total of 9. How can there be so many? I picked up the materials and flipped through them briefly.

"Didn't it happen in a year?" After looking at the time of the crime, I first came to the conclusion that "it didn't happen in the same year." "I started sorting cases by time, the first cases happened four years ago, and the cases that I have been able to find so far are two months ago.

The boss helped me spread out the case on the coffee table and sofa in chronological order, and continued to explain to me: "The modus operandi of these cases is relatively similar, but the identity of the victim is different, and the gender is also different, so there is no joint investigation, but there is no doubt that according to Zheng Min's investigation later, several victims have complained about being harassed before their deaths." And several of the victims were forced to have sex after their deaths. In addition, the suspect's time of committing the crime was irregular, some were separated by a month, and some were separated by half a year, so it is difficult to determine whether the time of his crime was the onset of his mental illness. If the answer is yes, his condition is very unstable, and we have no way to determine the time of the suspect's next crime, so all the investigations now can only be analysis, which is not helpful in finding the murderer. ”

"You're wrong." I interrupted the Boss, "You're ignoring a very obvious feature. ”

The boss tilted his head and looked at me, as if he didn't believe it, and said, "We've been observing these cases for almost a year, so there's no place on the first floor?" ”

I picked up a pencil, circled the time of the incident in the nine texts, and then pointed to the times and said: "First of all, the first deceased died at the end of March four years ago, the second deceased died in mid-July, the third deceased at the end of December, the fourth deceased at the beginning of May of the following year, the fifth deceased at the end of August of the following year, and the sixth deceased, one of the deceased who brought your attention, died in the third year. That is, in the middle of January last year, after which the seventh deceased, the other deceased that you have noticed by luck, died at the beginning of June last year, the eighth deceased, the other deceased that came to your attention, died at the end of September last year, and the last deceased was at the beginning of February of this year. Now, what do you see? I asked the boss, pointing to the date marked.

The boss still looked at me confused, completely unaware of what I was talking about.

I glanced at the boss, suddenly remembered the difference between male and female thinking, and sighed and explained in person: "The suspect kills people regularly, and the suspect has a very strong obsessive-compulsive disorder. Maybe because you're a man, you don't pay much attention to the astrological aspect. If you look at the arrangement of these dates, the time of death of the first three deceased corresponds to the three fire signs; The chronological order of death of the fourth, fifth, and sixth deceased corresponds to the three earth signs; The time of death of the last three deceased corresponds to the order of the three air signs. Wait a minute. I exclaimed.

Before the boss could fully understand what I was talking about, I marked the dates of birth of the deceased one by one, and then turned my head and said to the boss with a stern face: "Boss, their dates of birth and death belong to the same constellation, and they were both murdered after their birthdays. ”

I don't know if the boss understands what I'm talking about, but he immediately grabbed the information I put on the coffee table, he scanned the information in front of him and asked, "Then according to your idea, what month will he be born after that?" ”

"It's not what month you were born." I corrected, "It's about what zodiac sign you were born in." Constellations generally cross months, basically from a certain day after the 20th of the previous month to a few days before the day of the second month or the same day, simply put, from the end of one month to the end of another month. However, the end of Capricorn and Aquarius is near the end of the month. However, these two signs belong to the earth sign and the air sign respectively, and if the murderer kills according to the law I said, he should not be harming the people of these two signs, nor will he commit murder in the previous cycle of the sign. ”

"So, his next target?" The boss looked at me uncertainly, but the boss had heard some knowledge about the constellations, so he confirmed with me, "Do you think the suspect will commit murder on the people of the water sign during the water sign's cycle?" ”

"Logically, it looks like this." I nodded and replied, "So there should be a victim you didn't find." ”

"Got a victim we missed?" The boss was a little unsure, "Why?" ”

"Suspect's obsessive-compulsive disorder." I replied, "Judging from the order of the killings, the suspect suffers from a very strict obsessive-compulsive disorder. First of all, the time of death of the first deceased was at the end of March. According to the horoscope analysis, the first zodiac sign to start is Aries in the first house, Aries indicates the arrival of spring, is the fire sign, and then Leo, then Sagittarius. And the murderer killed the first three victims in this order. All subsequent victims were killed in the order of earth and air signs. This modus operandi shows that the suspect was also affected by obsessive-compulsive disorder when selecting victims, and had a strong sense of order. Therefore, according to the suspect's previous table, if he had not been irritated for a long time and did not commit murder, there should have been one more victim between the end of June and the end of July, the victim of Cancer, the fourth house at the beginning of the water sign. But this person does not appear in the information you have gathered. There are only three circumstances that can be explained: one is that the suspect suddenly loses the source of stimulation and does not commit the crime again; Another explanation is that the suspect cannot commit the crime because of other things, such as the suspect is seriously ill or cannot go out at will for some reason, but it is most likely that in addition to being seriously ill, he is imprisoned for other cases; The last explanation is that you missed a victim. Personally, I prefer the second and third interpretations. ”

Before the boss could judge my speculation, footsteps sounded outside the hallway, and the boss placed a loudspeaker on the door that looked like the one placed in front of the bank teller, so that the sound outside the door could be heard clearly, and the pinhole monitor that was secretly placed could also keep an eye on the information outside.

Zheng Min opened the door, and was surprised to see me and the boss sitting around the coffee table without expression, she glanced at the information on the table and sofa, closed the door, walked over and said directly: "We missed a case." (To be continued.) )