Solved: The Detective Returns

Under the instructions of Lin Can and Lu Jiatao, Ma Guozhen climbed down the ventilation window and came to the ground.

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Funeral parlor.

The door of the monitoring room.

Two staff members in maintenance uniforms are at the door, diligently checking the electronic locks at the door.

"This lock seems to be fine......

A staff member frowned and said, "The parts inside are not damaged at all, and the lock cylinder is also intact, why can't the door be opened?"

"Could it be...... Someone changed your password?"

Said another staff member wearing a work cap.

"There is this possibility, no wonder the password that has been tried for so long before can't open this door. "

The staff member before nodded and said, "Let's just reset the password lock, and you call the leader above to see what kind of password you want to change." "

The staff member wearing the hat nodded, and was just about to take out his mobile phone when the door lock on the side suddenly clicked.

"You opened the door?"

The staff member in the hat asked in surprise.

"No......"

The other staff member spread his hands and said, "I didn't do anything......"

"And this ......"

The staff in the hat widened their eyes, "Isn't there no one inside...... What's the situation?"

As soon as the words fell, the door next to it was directly opened, and a dark shadow came out of the house, startling the two staff members.

After seeing the face of the black shadow, the two staff members came to their senses.

"It's you...... Captain Ma ......"

The staff member in the hat gasped and said, "Why did you suddenly come out of this house, the two of us were almost frightened by you." "

"yes, isn't this lock broken...... I saw you at the gate before. "

Another staff member looked surprised and said, "How did you get in?"

"There's a vent inside that goes straight to the east-facing wall of the funeral home. "

Ma Guozhen said: "I came in through this vent. "

"I see......"

The staff wearing hats looked at Ma Guozhen's unkempt appearance, and couldn't help but sigh with emotion: "Captain Ma is really hard, and it's really not easy to handle cases...... Jumping here and ......"

At the same time, Lin Can and Lu Jiatao also came to the monitoring and saw Ma Guozhen and the staff at the door, Lin Can asked: "Has the reason why this door cannot be opened from the outside has been clarified?"

"This door lock is in good condition, and there is no problem with the hardware inside. "

The staff wearing hats returned

"Is it difficult to change the code of this electronic lock?"

Lin Can asked.

"It's not difficult. "

The staff replied, "As long as anyone knows something about this kind of lock, it is easy to reset the password and replace." "

Hearing this, Lin Can nodded thoughtfully, and then walked into the monitoring room with Ma Guozhen and Lu Jiatao to investigate.

Open several monitoring computers in the monitoring room, and the monitoring screen in several computers inside is still pitch black.

"What's the situation?"

Ma Guozhen looked at the pitch-black surveillance screen in front of him with a confused expression, "Isn't it already called, haven't those monitors been turned on?"

"It's not that it's not open, it's that the circuit is burned out. "

Lu Jiatao on the side analyzed: "It is estimated that it is because of the sudden power outage, coupled with the fact that it has been raining and leaking. "

"I just took a brief look at the circuits, and they are all equipped with current stabilizers, so it stands to reason that they shouldn't suddenly burn out the circuits. "

Lin Can squinted his eyes and said, "I guess the murderer did it on purpose." "

"Makes sense. "

Lu Jiatao nodded lightly.

"From the current point of view, it is not difficult to deduce the murderer's means of committing the crime. "

Lin Can analyzed: "The murderer came to the top of this monitoring room through the large vent facing the east wall, and took advantage of the opportunity for Zhang Fengsan to go to the toilet or go out to make a phone call, and the murderer went down to the monitoring room from the exhaust window like Captain Ma. "

"The purpose of sneaking in from this pipeline is to avoid Zhang Fengsan's sight, so as not to startle the snake and cause the operation to fail. "

He changed the password of the combination lock, the purpose was to prevent us from entering the monitoring room so quickly and finding the ventilation duct above, but he didn't close the door, so Zhang Fengsan could return to the monitoring room smoothly. "

Then the murderer came all the way to the main electrical box of the funeral home, closed the main gate, and destroyed the monitoring line, resulting in the monitoring room where the monitoring can no longer be read. "

Lin Can said: "After doing all this, he started his own plan to steal the corpse and carried out the operation of attacking Zhang Fengsan, because the main electrical box is not far from the morgue, so he has enough time. "

"Very well analyzed. "

Lu Jiatao looked at Lin Candao with an appreciative expression.

"But Zhang Fengsan doesn't have the key to the main electrical box, how can the murderer have it?"

Ma Guozhen asked with a puzzled expression.

"So this echoes my previous analysis, the murderer was or was working at a funeral home. "

Lin Can said: "Either he is very familiar with the funeral home, maybe he is an acquaintance of a certain leader here, he can enter and leave the funeral home freely, or he has come to the funeral home to repair the circuit here, so he secretly assigned the key." "

"I see. "

Ma Guozhen nodded and said, "I'll immediately ask the police to investigate the people who meet the conditions you mentioned Professor Lin." "

Lin Can also nodded slightly, and said, "Since the surveillance here has been completely damaged, we can only see if the surveillance outside has captured any clues." "

"Outside Surveillance ......"

A bright light flashed in Lu Jiatao's eyes, "You mean the monitoring of the road at the entrance of the funeral home?"

"That's right, it's obviously unrealistic for the murderer to carry the body on just two legs, if the murderer drove the car, then the surveillance on the road will definitely be able to photograph his license plate number. "

Lin Can nodded and said: "The monitoring room on the road over there is in charge of the municipal traffic management department, and the murderer obviously doesn't have the courage to destroy it." "

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