Things that solve crimes

"If they really killed each other, then these suspects will definitely appear in each other's cases."

"Finding their figures can further verify our guess." Qin Henian said.

"But it's not that easy to find." Team Chen looked sad.

"There was no surveillance around the hotel where Xiong Hao last stayed, and no witnesses were found."

"Not to mention the lake where his body was dumped. It's at the junction of the two and is located in a remote place. Occasionally, fishermen go fishing. But during those days of rain, none of the fishermen went there."

"It's difficult to find witnesses," a middle-aged detective interjected.

"The victims in the Yangdan case and the Ma Qi case both died in their own homes, but the surveillance didn't detect them? Were there any registrations for entry and exit?" Qin Henian asked.

There are surveillance cameras at the entrance of the community, and the guard should also register strangers when they enter the community.

Especially in the Yangdan case, the deceased's family lived in a villa area, so entry and exit should be more strict.

"Several of the deceased in the Ma Qi case were only discovered two months later. We can only estimate the approximate time of death, which will also affect the accuracy of finding the person."

"And for more than two months, the daily flow of people in the community has been so heavy that it is difficult to find a certain person in it."

The old detective said helplessly, it's not that they don't work hard, it's that some things can't be found without hard work.

The middle-aged criminal policeman added another sentence, "In the Yangdan case, the villa community has an entry and exit registration form, but some people cannot register."

"A rich man, haha..."

Those who can buy a villa must be rich or noble. Sometimes the owner of the villa brings a male and female companion back, and the guards will not ask for boredom and force people to register.

Qin Henian instantly understood what the middle-aged detective meant. He pondered for two seconds and said, "Is it possible that the deceased in the Yangdan case was killed by Yang Lan or Feng Yu?"

"Assuming they really killed each other, only Yang Lan and Feng Yu among these people could sneak into the villa area."

As long as they become the female companion of a certain villa owner, they can sneak in smoothly.

Of course, men are also possible, but from Qin Henian's point of view, these men still do not meet certain requirements in terms of appearance.

"But both of them are women, and there are slightly more men and women among the dead." A young detective said tactfully.

The old detective immediately retorted, "Don't underestimate women, and there are not enough drugs in the world to make people incapacitated."

"By the way, one more thing," Captain Chen said urgently, "On the day of the death of the deceased's family, Yang Dan ordered a cake for the deceased."

"At that time, the sheep list said that the order was wrong. Later, the cake packaging box was found at the scene."

"It seems that the reason why the deceased's family lost their mobility has been found." Qin Henian added silently.

Cake, something with special meaning, is only given on special occasions. Who can give it to someone else during the holidays?

What's more, Yang Dan hated the deceased's family so much, how could he possibly give them a cake or a few bullets?

If the murderer was Yang Lan or Feng Yu, Yang Dan's behavior would be understandable. If the deceased's family were given the medicine, the murderer would be able to commit the crime without worrying about the deceased's resistance.

"Actually, Yang Lan's case also needs to be investigated carefully. The deceased died in the park's fountain pool, which means that the murderer brought the deceased into the park."

"People who drive with suitcases and bags are very suspicious."

"There is no need to pay too much attention to Yang Lan this time. Just pay attention to whether any of the above-mentioned people match the suspects in other cases." Qin Henian said, touching his chin.

Yang Lan's case is actually the best entry point, because there are businesses near the park, and most of them will be monitored.