He Jiahui handed a cup of coffee to director Xue Chaohui and said at the same time: "Mr. Xue, don't be nervous. Regarding the case of Zheng Jiazhen's murder, do you think you know who the murderer is?"

"Yes, the murderer is Cai Mulin!" Xue Chaohui said with certainty.

"Cai Mulin, is that cameraman of your crew?" He Jiahui then asked: "Why do you say he is the murderer?"

"Because Cai Mulin had the motive to kill Zheng Jiazhen!" Xue Chaohui paused and then said; "In addition to being a cameraman, Cai Mulin is also a somewhat famous photographer.

But he is a very lustful person. He often tricks girls into taking large-scale photos in the name of taking free photos, and even tricks girls into having a relationship with him.

Zheng Jiazhen is one of the victims. More than three years ago, when Zheng Jiazhen was still a part-time model, she was tricked by Cai Mulin into taking a photo shoot, and was even tricked into sleeping with her by Cai Mulin.

At that time, Cai Mulin said that he knew many producers and had the resources to let Zheng Jiazhen act in movies. Zheng Jiazhen believed it because she was not experienced in the world. Later, Zheng Jiazhen realized that Cai Mulin had no resources at all and he was a liar."

"How do you know this?" He Jiahui asked.

Xue Chaohui answered: "Cai Mulin told me personally. Before accepting this advertisement, I had dinner with Cai Mulin. I told him that this time I found a very hot model to be the heroine. He asked

I told him who I was, I was Zheng Jiazhen.

When he learned that the heroine in the advertisement was Zheng Jiazhen, he showed off to me that he had had a relationship with Zheng Jiazhen, and then told me everything that happened three years ago.

It was also for this reason that I thought Zheng Jiazhen was a relatively casual model, so I drank too much that night, so I used the power of alcohol to harass Zheng Jiazhen, and then she slapped her."

"According to what you said, it was Cai Mulin who deceived Zheng Jiazhen, and it was Zheng Jiazhen who suffered the loss. It must be Zheng Jiazhen who resents Cai Mulin. Logically speaking, it should be Zheng Jiazhen who wants to take revenge on Cai Mulin, right?"

He Jiahui continued: "Cai Mulin is the one who took advantage. Since he took advantage, he shouldn't be resentful towards Zheng Jiazhen, and he is unlikely to kill Zheng Jiazhen, right?"

Xue Chaohui continued to explain: "This is because three years ago, when Cai Mulin took photos of Zheng Jiazhen, he also persuaded her to take a set of very large-scale photos, which were more than enough to be used as a cavalry cover.

After I was slapped by Zheng Jiazhen that day, Cai Mulin showed off those photos to me, saying that as long as he had these photos, he could ask Zheng Jiazhen to open a room with him at any time.

Later, on the first night when we came to the island, Cai Mulin probably felt lonely sleeping alone, so he took those photos and went to see Zheng Jiazhen. The two even had a quarrel. The sound was so loud that the entire B&B could hear it.

.”

"That is to say, apart from you, the crew's assistant Chen Weiting also heard it?" He Jiahui asked.

Xue Chaohui nodded: "We were all in our respective rooms at the time. If Chen Weiting was also in his room, he would definitely be able to hear it."

"Did you hear what Cai Mulin and Zheng Jiazhen were arguing about?" He Jiahui asked next.

"I didn't listen carefully. Cai Mulin probably wanted to use those large-scale photos to threaten Zheng Jiazhen, saying that if Zheng Jiazhen didn't spend the night with him, he would post the photos online. Zheng Jiazhen asked Cai Mulin to hand over the negatives, otherwise he would call the police

, expose all the scandals about Cai Mulin." Xue Chaohui replied.

"Scandal matter? What does it refer to specifically?" He Jiahui asked again.

Xue Chaohui shook his head: "I don't know exactly what it is, but Cai Mulin is lustful and has a bad character. He must have done many immoral things in recent years.

There are rumors that he seduced underage girls, and that he drugged models, but these are just rumors. I only heard about them and there is no evidence. Maybe Zheng Jiazhen knows something inside!"

"Why didn't you talk about these things when the confession was first taken?" He Jiahui continued to ask.

"One more thing is worse than one less thing!" Xue Chaohui continued with an innocent look: "And I was also worried at the time that the police found out that I stole money, so I wanted to leave as soon as possible after recording a confession. Later I heard that the police said that An acquaintance committed the crime, and after careful consideration, I realized that Cai Mulin was the murderer!"

Xue Chaohui was very sure that Cai Mulin was the murderer, but on the night of the murder, Cai Mulin had an alibi.

"Perhaps we should re-examine Cai Mulin's alibi." He Jiahui thought to himself.

…

Cai Mulin's camera is still in the police station, and the police officer once again connected the camera to the computer.

He Jiahui sat next to the computer and began to check the creation time of the photos one by one.

Liangbao said: "I have seen the creation time of these photos, and there is no problem. Between two o'clock in the morning and four o'clock in the morning, Cai Mulin has been taking pictures on the northeast coast. He has no time to go to the B&B to kill people. I think it is

That Xue Chaohui deliberately said that Cai Mulin was the murderer in order to reduce his sentence!"

He Jiahui did not answer, but continued to check the creation time of each photo.

As Liangbao said, Cai Mulin took many photos between two in the morning and four in the morning, which means that during this period, Cai Mulin did not leave the shooting location at all.

"The creation time of this photo is 2:10, this one is 2:13, this one is 2:21, this one is 2:27... Huh?"

Suddenly, He Jiahui discovered a problem. The creation times displayed in multiple consecutive photos all had the same place, that is, the "seconds" position showed "01".

For example, for the one at two o'clock and ten minutes, the creation time is displayed as 02:10:01, and for the one at two o'clock and thirteen, the creation time is displayed as 02:13:01.

"No, there's something wrong with these photos!" He Jiahui checked the photos taken after 2:30, and the situation was the same.

Until 4:20, all the photos created during this time period showed the "second" position as "01".

He Jiahui looked at the label of the photo again, calculated the numbers, and then showed an expression of sudden realization.

"I understand! These photos were not taken by Cai Mulin himself, but by the timer photo function of the camera!" He Jiahui said.

"Timed shooting? How did you tell?" Liangbao asked.

Ho Jiahui explained: "Look at the creation time of these photos, the seconds are all 01 seconds. If you were a photographer, would you be stuck at the first second of every minute every time you press the shutter?

?

If only two or three photos are like this, it can be explained by coincidence, but if dozens of photos here are like this, it is definitely not a coincidence. Even if the photographer deliberately blocked the time, it is impossible to make every picture accurate.

Stuck at 01 seconds.

If you look at the numbers of these photos, the one at 2:10 is numbered img-3402, and the one after 2:13 is numbered img-3405. The number is three digits different, and the time is also three minutes different.

.

The next photo at 2:21 is numbered img-3412, which is seven numbers different from the previous one, and the shooting time is also exactly seven minutes different.

If I guessed correctly, Cai Mulin set the one-minute automatic shooting function. The camera will automatically take a photo every one minute.

Because the camera's imaging system has a delay, the generated image will be one second slower than the photo-taking time, and the second position of each photo will appear, showing 01 seconds.

Later, Cai Mulin deleted some photos that he was not satisfied with, that is, those with missing photo numbers. The reason why he did this was to avoid being discovered by us, and he used a one-minute timed shooting."

Guan Gong also came over, then pointed at the photos on the computer and said: "Jiahui, your guess is wrong, isn't it? If the person is not there, but the camera is set up and timed shooting is used, then the shooting angle of all the photos should be the same

But when you look at these photos, the angle has obviously changed. It is obvious that someone is adjusting the angle of the camera, right?"

Liangbao next to him also said: "Yes, I saw that the angle of each photo was different at that time, so I didn't doubt Cai Mulin."

Ho Ka Fai answered, "There is a kind of photography equipment called an electric remote control stand. Some can rotate 360 ​​degrees, some can adjust the height up and down, and some can even set a track route in advance.

The electric slide rail and the 360-degree rotating stand are enough to take pictures from different angles. In addition to being a videographer, Cai Mulin is also a photographer. He should be very familiar with this kind of professional equipment. He can use this method to create different scenes.

Proof of presence!

Those photos deleted by Cai Mulin should still be recoverable. If we recover all the photos inside and then arrange them according to their numbers, we will definitely be able to find the relevance of the photos."

"In other words, these photos of Cai Mulin were probably taken when no one was around, so Cai Mulin's alibi was forged by himself?" the official asked.

"That's right, so now we need to call Cai Mulin for questioning again, and we also need to search his luggage. If we find electric brackets or slide rails, we can find out that Cai Mulin deliberately forged an alibi.

Evidence!" He Jiahui replied.

…

He Jiahui, Du Xiaohe and the three people from Taishan came to the B&B again. This time they wanted to take Cai Mulin away for questioning.

"This is the room where Mr. Cai lives." Aunt Xian, the owner of the B&B, pointed to one of the rooms and said.

He Jiahui stepped forward, knocked on the door, and said at the same time: "Mr. Cai, are you there? We are the police."

However, no one in the room responded.

He Jiahui leaned on the door and listened, but didn't hear any sound, so he said, "Aunt Xian, open the door, we want to go in and take a look."

Aunt Xian immediately took out the room card and opened the door to Cai Mulin's room.

Cai Mulin was not inside, and the room was empty.

Not only that, in addition to the absence of people, even the luggage was missing.

"Aunt Xian, didn't Cai Mulin bring any luggage?" He Jiahui asked immediately.

Aunt Xian immediately replied: "Why didn't he bring any luggage? He brought a lot of luggage, including two big boxes, saying that there were filming equipment in them."

Du Xiaohe looked at the empty room: "There is no suitcase in the room at all, so he moved all the luggage? Could it be that Cai Mulin has escaped?"

Taishan said: "We must have arrested the director Xue Chaohui and alerted the enemy. This is terrible. As long as people leave Cheung Chau Island, it will be difficult to catch him."

He Jiahui was very calm. He walked to the TV, reached out and touched the back of the TV, and then said: "The TV is still gentle. He probably hasn't gone far. Let's go to the dock now. Maybe we can intercept him!"

Everyone immediately rode their bicycles and arrived at the pier, but the ferry had just left.

"It's still a step too late!" Du Xiaohe said a little frustrated.

He Jiahui said calmly: "It doesn't matter. If you are on the sea and can't escape, call the water police and ask them to send a speedboat to intercept you!"

…

How could the ferry be faster than the Marine Police speedboat?

Moreover, the police stations on the outlying islands were originally under the jurisdiction of the Marine Police Region. This murder case was also a case of the Marine Police. Therefore, after receiving the notice, the Marine Police immediately dispatched a speedboat to intercept the case.

An hour later, the marine police sent the suspect Cai Mulin back to the Cheung Chau Island Police Station, along with Cai Mulin's suitcase.

He Jiahui put on his gloves and opened Cai Mulin's suitcase.

The box is full of auxiliary tools for photography, and I found a telescopic electric slide rail for shooting and a 360-degree electric rotating stand.
To be continued...