There are only two possibilities for yellowish urine.

The first physiological factor is generally yellowish in the color of the first urination after waking up, because after a full night of rest, the urine in the body will be concentrated, and the concentration of waste content is relatively high, and the color will be yellow.

The second pathological factor is that when there is a problem with the physical condition, the urine will also be yellowish or even brown. For example, cystitis, urethritis, prostatitis, etc. can cause yellowish urine. The infection can also cause symptoms such as frequent urination and urgency.

Judging from the current situation, Zhang Leifeng is more inclined to the second "pathological factor", there are no public toilets in this high-end community and a nearby radius of 300 meters, and the murderer must not be able to hold back and return home or find a public toilet.

The on-site investigators came to the scene, first reprimanded by Xing Dongjie, and then took them into the bathroom.

When they saw the urine at the scene, they were all stunned: "Did you find it last time?" He asked his colleague next to him.

"No, I checked here inch by inch at the time, and I didn't find this drop of urine." Another colleague replied in the affirmative.

When Zhang Leifeng heard this, he immediately turned around and went back to the toilet: "You said you didn't find it?" He asked.

The two of them nodded neatly: "We had absolutely no urine last time we came here." He replied to Zhang Leifeng.

Zhang Leifeng patted his brain with his hand, and returned to the living room with a muttering mouth.

Yes, I didn't see this drop of urine last time I came to the toilet, but why did it happen this time? Thinking of this, he quickly ran out of the room, came to the door, and looked at the seal for a long time.

Nodding slightly: "It turns out that someone has come in." He muttered.

"You said someone came in here?" Xing Dongjie hurriedly came over and asked questions.

"Yes, you look at the glue under the seal, although the place where he sticks it is the same as the original position, but the glue you used before has been dry and hard, and the glue applied later is still soft." Zhang Leifeng explained to him by tearing off the seal covered with glue with his hands.

Xing Dongjie pinched it with his hand, and indeed found that there was a piece of dry and hard thing under the soft glue.

"This murderer is so rampant, he dares to return to the scene of the crime." Xing Dongjie couldn't help but raise his voice a little.

Zhang Leifeng didn't answer, he pinched the corners of his eyes and temples with his hand and turned around and walked to the elevator.

Xing Dongjie watched his back dissipate into the corridor, and a moment later he heard the sound of the elevator door. He knew that Zhang Leifeng needed a quiet space now, and his brain was probably in chaos.

Yes, Zhang Leifeng's brain was originally very clear, but it was a little confused by the evidence that appeared one after another, and he continued to piece together these fragments.

took a taxi home, and after entering the door, when Fan Miaomiao was about to speak, he stretched out his hand to interrupt her: "I need to be completely quiet now, please don't make any noise from now on, thank you." He said to her with his eyes fixed on the front.

Fan Miaomiao stood in place and nodded mechanically.

Boom!

Zhang Leifeng returned to his bedroom and slammed the door shut.

Fan Miaomiao moved towards her room with very light steps like a thief, and the movements on her body were so exaggerated that she wanted to laugh.

Zhang Leifeng sat on the balcony of the room, facing the heavy opaque curtains, his left hand was changed to his abdomen to support his right elbow, his right hand supported his chin, he frowned, his eyes were in a daze, and his brain began to work rapidly.

All the useless evidence is thrown away, and the useful evidence is pieced together bit by bit.

I have been in contact with the suspense case twice since I came into contact with the scene now, but both times they just pretended to be passers-by to watch, but no one dared to tear the seal and enter the scene. This time, the killer not only returned to the scene, but also took a soak of urine in the bathroom......

Why on earth did he go back? Why? Why? Zhang Leifeng's mind kept echoing this question.

Suddenly, his eyes widened, his hands slapped hard, and he hurriedly took out his mobile phone from his pocket and dialed Xing Dongjie's number.

Xing Dongjie answered the phone and said first: "There is something I have to inform you." ”

"Is there any sign that the room has been turned over a second time?" Zhang Leifeng put forward a conjecture about Xing Dongjie.

Xing Dongjie was stunned for a moment, paused for a moment, and replied: "Yes, there are indeed traces of being turned over in the room, and it was found that nothing was lost through inventory." ”

"Are you sure?" Zhang Leifeng didn't quite believe this answer.

"I'm sure and very sure."

"Okay then, but I'm sure the murderer must have lost something very important, and it's not too big, so you'd better have your people search the door of the building." Zhang Leifeng replied to him.

"Okay, I got it."

After the two finished talking and hung up the phone, Zhang Leifeng stood up and walked out of the bedroom.

Hearing the knock on his door, Fan Miaomiao walked out with her, this time she had changed into sneakers, put on a set of casual clothes, and wore a Harem hat.

Zhang Leifeng glanced at her: "Ready?" He asked.

"Always ready."

"Hehe, okay then, let's go." Zhang Leifeng smiled helplessly and took her out of the room.

Come to the intersection and stop the taxi, and take a taxi to the community where the accident occurred.

Driving on the road, Fan Miaomiao asked him a little incomprehensibly, "Didn't you just come back from there today?" Why are you going to go now? ”

"I'm going to find that guy now." Zhang Leifeng replied with a grim smile on the corner of his mouth.

"Ah...... Do you already know the results? Although I have experienced several cases with him, I still can't help but express surprise at many of his things.

Zhang Leifeng shook his head: "I don't know yet." ”

Come to the community and walk into the property office. After identifying themselves, they retrieved surveillance video from three days before the day of the incident.

Zhang Leifeng stood in front of the big screen with his chin in his hands, and kept saying: "Fast forward, faster, faster." ”

The staff who played the surveillance looked at this somewhat abnormal guy just like the expression of the police officer that day.

The three-day video allowed him to read it in just over three hours. After watching these videos, Zhang Leifeng shook his head a little lost.

Fan Miaomiao felt an unhappy aura emanating from him, and leaned over and asked tentatively, "Didn't you find anything?" ”

"Help me bring up the video from five days ago." Zhang Leifeng said to the person in charge of the property.

"Five days?" The person in charge exclaimed.

"Yes, hurry up."

"Okay, okay."

After watching the five-day video, Zhang Leifeng still hasn't found the figure that makes him excited.

(End of chapter)