A perfect crime? To me, it's full of flaws!

Lin Haitang and Lu Ziye began to act separately.

A contact person delivered the goods to the province.

One of them returned to the task force and began collecting information according to Qi Feng's requirements.

Qi Feng, as he said, went to buy some things to help solve the case.

He bought a huge map of H City, a 60-centimeter-long steel ruler, a box of thumbtacks, and two rolls of red and blue rope in distinct colors.

This seems normal enough, and it should indeed be for the purpose of handling the case, as Qi Feng said.

But the shopping route that followed was a bit strange.

First, there was a small, single-door refrigerator that was about half the height of a person, with a very simple function: refrigeration. Then there was a brand-new air purifier (Haitang has been coughing a lot lately).

Then I bought four cases of Coke, two cases of Red Bull, and two cases of coffee. Considering health, I also added two cases of Perrier.

Then I bought Haitang's favorite spicy duck necks, potato chips, nuts, chocolate bars...

When I passed by the small appliance section, I saw a waist massager and thought it might be useful, so I bought it.

When all the items were moved back to the municipal bureau office.

Lu Ziye, carrying a huge stack of documents and panting heavily, and Lin Haitang, who had just walked in from outside, were both stunned.

Brother, is this what you bought for the case?

Of all the things related to the case, if you count them on your fingers, there's only that map and ruler in the corner.

"No, Qi Feng, what are you doing..." Lu Ziye pointed at the brand-new mini-fridge, speechless for a long time, as if to say, "Are you here to investigate a case or to go on vacation?"

Qi Feng ignored him and simply shoved a bottle of coffee into his hand.

"Want some?"

Lu Ziye looked down.

Big spender!

This coffee would cost over 20 yuan a bottle in the supermarket! That's enough for him to drink instant coffee for a week!

He admitted that he had been successfully corrupted!

Then I turned my head and looked again.

Lin Haitang had already unpacked the waist massager without any hesitation, plugged it in, and comfortably leaned back in her chair, holding a duck neck in her hand and nibbling on it.

Lu Ziye fell silent.

He silently put the coffee in his hand into the small refrigerator that had just been plugged in and was buzzing.

"I...I love iced drinks!"

After some effort, the office was finally put in order.

"Alright, let's get started!"

Qi Feng clapped his hands and spread the massive amount of materials that Lu Ziye had brought on the table.

He believed that the murderer had gone to such great lengths to set up such a bizarre scheme, and it was definitely not a random killing.

There must be some unknown, deep connection between these six victims.

"Haitang, Master Lu, please help..."

After giving some instructions, Qi Feng plunged into the pile of documents.

Lin Haitang and Lu Ziye exchanged a glance and immediately began to act according to Qi Feng's instructions.

The two of them first worked together to firmly nail the huge map of H City to the wall with thumbtacks.

Then, following the information, they began marking the map.

The locations of the six suicides were marked with red thumbtacks and then strung together with a red rope to form an irregular polygon on the map.

The six residential addresses were marked with blue thumbtacks and connected by a blue rope.

On the other hand, Qi Feng's work was even more tedious.

Instead of looking at the map on the wall, he took out a stack of A4 paper and the steel ruler.

Draw a huge table on the paper.

The horizontal row lists the names of the six deceased.

The vertical axis is filled with a dense array of comparison items: age, gender, occupation, place of origin, education, university graduated, work experience, marital status, whether or not there are children, assets under one's name, analysis of call records for the past three months, spending records for the past six months, social media friend list, online activity, medical examination report...

What he had to do was to completely disassemble these six people like parts, and then put each part together for the most primitive and clumsy horizontal comparison.

There was no way around it; simply relying on his brain to memorize such a massive amount of information and then making comparisons in his mind was beyond Qi Feng's capabilities.

Human memory has its limits, and there will always be omissions.

Qi Feng had no choice but to use this most rudimentary method.

Although it is time-consuming and labor-intensive, its advantage lies in its absolute accuracy and intuitiveness.

Any tiny similarity will be revealed in the horizontal comparison of the table.

Time passed by, second by second.

After finishing the map, Haitang and Lu Ziye also began to help Qi Feng with his work.

Soon, it was noon.

The three of them had completed less than a third of the work.

"Gurgle..."

Someone's stomach growled.

"Have a meal."

Qi Feng picked up his phone and started ordering takeout.

When he went to the restroom earlier, he secretly peeked into the kitchen and saw that the food was far worse than what was served at the provincial government's kitchen; it didn't look appetizing at all.

After a sumptuous lunch, the three rested briefly before returning to their monotonous work.

The afternoon slipped away quietly in this state of intense focus.

Until it got dark and the sun went down.

"call....."

Qi Feng let out a long breath, finished writing the last stroke, threw down his pen, stood up, stretched vigorously, and his joints cracked and popped.

Lin Haitang and Lu Ziye also stopped what they were doing.

All the social and personal information of the six deceased individuals has been thoroughly analyzed, categorized, and arranged.

All the comparison items have been listed.

Next, we need to find the connections between these pieces of information!