Regardless of whether this Tie Qiang killed someone or not, the crime of theft is indispensable anyway.

Next, Lin Zhongtian asked Song Tianming about some of the situation.

After a while, the female patrolman Ah Fen sent a transcript of the interrogation to Lin Zhongtian, and after he and Fang Ping looked at it, they knew the reason.

Song Tianming was discovered by Li Guang for embezzlement of public funds, and then was threatened by Li Guang with this as a handle, and Li Guang fell in love with Song Tianming's wife Zhang Lihua.

In the face of Li Guang's coercion and temptation, Zhang Lihua could only make compromises.

"It seems that this Song Tianming and Zhang Lihua also have a motive to kill." Fang Ping said.

"Yes! Especially this Zhang Lihua, who happened to be the last person the deceased saw when he died. Lin Zhongtian was also very skeptical.

"No, it's too early to tell, don't forget that an unidentified person has entered this room." Fang Ping touched his chin and said.

After a while, a patrol in charge of on-site evidence collection came over:

"Head, after testing, the deceased's carotid artery was fatally stabbed, and the murder weapon was a dagger or knife with a length of about 20~30, but we did not find the murder weapon at the crime scene."

"Did you double-check?"

"We have carefully checked the entire room, and we have not found the existence of the murder weapon, which may have been taken away by the murderer."

"You and Archer go and search Tieqiang's room." Lin Zhongtian commanded.

“OK！”

"Others conducted a full search of the rooms and common areas of the other two suspects."

"Yes!"

Fang Ping suddenly looked at the fish tank in the deceased's room: "Captain Lin, let's go and take a look at that fish tank together!" ”

"Fish tank?" Lin Zhongtian was confused, but he still followed.

"Did you find anything here?"

Lin Zhongtian hurriedly called up the on-site inspection report just now and took a look:

"Some traces of the unknown person's activities have been found here, but for some reason, they are quite vague, as if they have been washed by water."

"Washed with water?" Fang Ping suddenly squinted and thought about it, and after a while: "Captain Lin, please open the window above the fish tank and check if the stainless steel mesh has been damaged or moved." ”

"Uh, okay." Lin Zhongtian hurriedly put on his gloves and opened the window above the fish tank.

After a while, Lin Zhongtian found that the lock at the maintenance entrance of the stainless steel mesh of the fish tank was broken: "Mr. Fang, the lock at the maintenance entrance has been cut." ”

"As expected!" Fang Ping immediately understood how the murderer had avoided surveillance and entered the deceased's room.

"It seems that the fourth person may have entered the deceased's room from here." Lin Zhongtian is not a fool, and when he thinks about it, he understands the trickiness in it.

"Call the hotel manager." Fang Ping commanded.

Lin Zhongtian walked to the corridor and called the depressed hotel manager in.

"Captain Lin, Mr. Fang, do you have anything you need to know?" The hotel manager hurriedly asked.

"Are all the fish tanks in your hotel connected?" Fang Ping asked.

"Yes, the fish tank on each floor is a whole."

Fang Ping pointed to the entrance that was opened by Lin Zhongtian and asked, "Then is this fish tank maintenance entrance available in every room?"

"Yes, these entrances are set up for easy maintenance, so every room has them, but we all have locked ones, how can this be opened?"

"Someone cut it open."

"It seems that everyone in this layer is suspicious." Lin Zhongtian said with a frown.

Fang Ping said to the manager: "I took a look, there are two rooms owned by the hotel on this floor, a total of 39 rooms, excluding the 16 rooms that are inhabited by our company's employees, and the other rooms are troublesome for the manager to call up the guest information." ”

Soon the hotel manager called up the remaining 23 rooms with guest information.

"Judging from the expression of the deceased, the murderer should be known, which means that the possibility of an acquaintance committing the crime is very high." Fang Ping continued.

Lin Zhongtian quickly conducted an investigation based on the guest information provided by the hotel manager, and soon the situation of the 23 rooms was completed.

"First of all, we locked down the tenants living in Xiamen according to their household registration and permanent residence, and in addition to Song Tianming and his wife, there are two other people who are also in Xiamen."

"Summoning these two men first."

After a while, the patrol who went out to search the room of Song Tianming and his wife came back.

"Head, here's the investigative report."

Lin Zhongtian flipped through the holographic projection report, Fang Ping also looked at the investigation report on the side, and found a diving suit in the room of Song Tianming and his wife, a fish tank maintenance entrance lock that had also been cut, and a dagger with a length of 26 centimeters.

"Is the dagger the one that kills you?"

"It's not!" After shaking his head, the survey patrol explained: "In the big data matching, we found that the dagger or knife of the deceased's wound should be relatively thick, which does not match Song Tianming's dagger. ”

Fang Ping and Lin Zhongtian both frowned, this Song Tianming pointed to him both in terms of the motive for the murder and all kinds of evidence, but this person was really the murderer?

Especially Fang Ping, the black shadow that flashed by last night has always been entrenched in his heart.

Soon, two other suspects were brought over.

One is Zhang Li, who came to participate in the fishing competition, and the other is Li Shaoye, the third owner of the fishing boat, that Fang Ping saw in the hot spring pool yesterday.

"Mr. Li, where were you at 20~21 o'clock last night?" Lin Zhongtian asked.

"I drank some alcohol and went to sleep in my room." Li Shaoye replied a little nervously.

"Shall we investigate your room?"

"Yes." Li Shaoye nodded hurriedly.

Then Lin Zhongtian routinely questioned and investigated the angler Zhang Li.

Both of them looked decent, Fang Ping took a large number of glances at the two of them, not letting go of every detail of their bodies.

Zhang Li looked a little restrained, and Li Shaoye was the same, and suddenly he saw that Li Shaoye's right hand was red and swollen in the shape of stripes, as if it was a trace after tying something.

"Head, the report of the search of the room of the two people is out."

Lin Zhongtian and Fang Ping hurriedly looked through it, and after a while, they didn't find anything abnormal in their room, there were two knives in Zhang Li's room, but they didn't match the murder weapon; And Li Shaoye's room also did not find the existence of the murder weapon.

As for the fish tank maintenance entrance of the two-person room, it is also intact.

However, the lock at the entrance to the fish tank maintenance in Song Tianming's and his wife's room was cut.

In other words, the murderer used at least two tools of crime, a vice and a dagger, but none of them have been found now.

It's too weird, Fang Ping pondered.

"Captain Lin, let's go together, take a look at a few suspects' rooms, and see if there's anything missing." Fang Ping suggested.

"Hmm!"

The two of them came to the room of the first suspect, Tie Qiang, first.