After three hours of collecting, Zou Ping collected a complete footprint on the outside of the window, a few pieces of dandruff and a few tiny clothing fibers on the window frame. For most of the three hours, only Liu Donghe was helping Zou Ping collect evidence, and Liu Hai and Zhang Yulang had already fallen asleep on the bed on their backs.

Seeing them like this, Liu Donghe shook his head, walked over and raised his leg and gave them a kick, Zhang Yulang deserved to sit up just after the lightning and flint of the soldiers, and the bangs were not slow.

"Sober up, wash your face, it's going to be dawn soon, change back, I'll treat you to breakfast." Liu Donghe turned his head and then Zou Ping said, "After eating, you work harder, and strive to get the report out to me in the afternoon." ”

"Yes," Zou Ping said

Now that it's no longer snowing outside, Liu Donghe and the others drove directly to a restaurant near the police station, and after dinner, except for Zou Ping, everyone else went to the office to catch up on sleep.

At one o'clock in the afternoon, Zou Ping walked into the office with the inspection report, at this time Liu Donghe was drinking coffee, looking at the information, because the case was not closed, he really couldn't sleep.

"Section chief, the inspection report has come out, according to the inspection report, the shoe prints and dandruff are consistent with the information we collected from He Weibo, and now we should be able to arrest people."

"Well, now it can be said that there is a motive for the crime, he has a relationship with the two victims, for the sake of love, the time of the first case is also there, but the time of the second case is not, and we just collected some basic information about He Weibo, the murderer's modus operandi is not something that ordinary people can complete, how can he use this method to kill two women, and we have no direct evidence to prove that He Weibo is the murderer, lying and destroying other people's things does not mean that he is the murderer, so let's do it, Don't alarm He Weibo first, let's investigate in-depth first, and do all our homework before acting. Liu Donghe took the report and said

"Okay, so what are we going to do next?" Zou Ping asked

"You go and collect specific information about He Weibo, mainly his social connections, to see if he has the ability to complete this case alone." Liu Donghe said to Zou Ping

"Yes," Zou Ping replied

"You two, it's time to get there, wake up." Liu Donghe casually took two books and threw them at Liu Hai and Zhang Yulang

"Section Chief, I'm dreaming of eating a French dinner, what's the instructions?" Bangs wiped his saliva and said

"There is a new discovery in the case, Liu Hai, you go to the school to find He Weibo's department head or classmates or something, ask He Weibo if he attended the meeting on time on the morning of November 15th, remember not to alarm He Weibo, fisherman, you and I go to the grove to find evidence first, and second, if it is He Weibo, then we have to determine the time of committing the crime and the time of escape."

After assigning the task, the four of them drove directly to the School of Architecture first, and in the parking lot of the school, Zou Ping and Liu Hai got out of the car and went their own business, and Zhang Yulang followed Liu Donghe to get out of the car and go to the grove.

"Fisherman, based on the time in the current case, we can infer that if it is really He Weibo's crime, then that is to say, from the time someone finally saw Li Shanshan at 8:20 p.m. to He Weibo's appearance in the classroom at 8:30 p.m., there are only 10 minutes of time to commit the crime and time to escape the scene, even if these two times are not very accurate, it will not exceed 15 minutes, and it is really incredible for a college student to kill and escape in such a short period of time." Liu Donghe said as he walked

"Well, besides, when the deceased died, a large amount of blood spurted out, and it is impossible for him not to have blood stains on his body, so he must also change his clothes in this limited time, and dispose of the bloody tools and clothes of the crime, plus there are no clues left at the scene of the crime, this can't be completed at all." Zhang Yulang continued

"This is not difficult, as long as you put a leather coat or coat on the outside, such as a military coat or something, it is easy to take off, find a place to put things up first after finishing the case, as for the traces of the crime, it will be simpler, who will come to this grove at night in this season, it is only 1 degree during the day today, and it is not several degrees below zero at night, so he can wait until school to deal with it, there is plenty of time." Liu Donghe said

After walking for a few minutes, they came to the grove where Li Shanshan was killed, Liu Donghe took Zhang Yulang to the scene of the crime quickly, he looked in the direction of the teaching building, and said to Zhang Yulang: "You run from this place to the teaching building now, see how long it can last." ”

After saying "Okay", Zhang Yulang turned on the second meter on his mobile phone, and ran in the direction of the teaching building, while Liu Donghe waited in place.

In the blink of an eye, Zhang Yulang stood in front of Liu Donghe again.

"I came back pretty quickly, how long did it take." Liu Donghe asked

"2 minutes and 45 seconds, the visual distance should be about 1 kilometer." Zhang Yulang said

"Well, no matter how slow He Weibo is, he can't run for 4 minutes, which means that he still has more than 6 minutes to commit crimes and hide crime tools." Liu Donghe thought for a while and then said: "According to the last person who saw Li Shanshan, Li Shanshan was awake when he saw Li Shanshan, if it was really the person He Weibo killed, then there is only one possibility, Li Shanshan came out of the hotel after taking the medicine, and when she arrived at the scene of the crime, she happened to have a drug attack, but even if it was a killer for a woman who had lost consciousness, I think two or three minutes would not be enough, that is to say, if He Weibo was the murderer, the tool of the crime should have been placed somewhere in this woods at that time, It's impossible to hide the tools of the crime in this direction from the inn to the woods, so let's search in the direction of the school and see what we can find. Liu Donghe said and took the lead in looking forward.

Because the soil on the ground is still relatively hard at the bottom of the temperature, Liu Donghe and Zhang Yulang are like sweeping mines, dividing into two directions, picking up the soil clods one by one, looking for them inch by inch.

"Fisherman, come here, I seem to have found it." Liu Donghe squatted next to the iron fence of the school and shouted, this place is about thirty meters away from the gap in the fence, but because it is the farthest away from the school's street lamp, and there is a big tree next to it, this is a very hidden place, if you don't look carefully at night, it is impossible to see that there is a person here.

Zhang Yulang heard the shout, hurriedly ran over, and saw Liu Donghe was comparing a pit that was not too big, if it weren't for the current temperature being too low and kept it as it was, it was estimated that the mud and sand blown by the wind would be able to fill him in, no wonder the forensic doctor didn't find it when he first came to the scene of the crime, and there were spots of blood next to the pit, which was obviously stored with blood.

"Yulang, Zou Ping is busy now, you call the forensic office, and ask them to send someone to collect evidence, let's look for it again and see if there are any other clues." Liu Donghe heard Zhang Yulang's voice coming over and said without looking back

"Okay." Zhang Yulang replied

Although there is no substantive evidence to prove that He Weibo is the murderer, and the current discovery is very likely to have direct evidence of the murderer's crime, Liu Donghe still suppressed the excitement in his heart and slowly looked elsewhere, because he knew that the greater the hope, the greater the disappointment.

Until the forensic doctor from the police station came over, Liu Donghe and they didn't find anything useful, but today after all, there is a little practical gain, and Liu Hai's side has already investigated it, only Zou Ping learned about He Weibo's classmates about his off-campus activities and took a taxi to other places.

Liu Donghe took Zhang Yulang to pick up the bangs and drove back to the police station, and when he arrived at the police station, he asked Liu Hai to follow the forensic doctor to the laboratory, and he must get the test report today, this case has been more than a week, the golden forty-eight hours have already passed, and now it is a day of difficulty to delay one more day, so I have to hurry up.

Zou Ping rushed back at five o'clock in the afternoon, and brought back an exciting fact, the forensic doctor also worked overtime at 7 o'clock in the evening to hand over the test report to Liu Hai.