Things that solve crimes

It was already dark and the lighting in the bathroom was not good, so wiping was more laborious than during the day.

But Qin Henian was very enthusiastic. In his opinion, this murderer was a bit amateurish.

Today's DNA testing technology is very developed. How advanced is it? Can detect identity information from sweat.

As long as the murderer took a bath in the bathroom, he was sure to extract DNA in the bathroom. Having said that, with so much blood on the murderer's body, there was no way he wouldn't take a shower and change clothes.

Moreover, it is simply impossible to clean the bathroom and destroy all the information in a short period of time. In addition, the bathroom does not separate dry and wet areas, so water splashes are very likely to splash in corners and other places.

If he were the murderer, he would completely wrap the bathroom with something like plastic wrap and plastic bags, and take the things with him when he leaves to reduce the possibility of exposing his information.

However, another problem arises: traces of glue tape will be left on site.

Sure enough, in modern society, it is simply impossible to commit a perfect crime. As the saying goes, as long as you walk through, there will be traces, and these traces can really be picked out in minutes.

It took until midnight to finish wiping the entire bathroom. The two presenters looked exhausted, but Qin Henian was still energetic. He sent the things to the laboratory and then returned home.

In the afternoon of the next day, news came from the laboratory that DNA that did not belong to Fang Ye was detected. After matching, Fang Ye's fiancée, She Qian, was found.

Immediately, She Qian was invited back to the police station.

In the interrogation room, She Qian lowered her head and covered her face with her long hair, making her expression unclear.

Qin Henian and an interrogating policeman walked into the interrogation room and sat down.

The policeman asked, "She Qian, do you know why we are looking for you?"

She Qian raised her head, revealing her red eyes, "I know, I killed the person."

Qin Henian:......

Is this just giving up without struggling?

"Why did you kill Fang Ye?" the policeman asked again.

Unexpectedly, She Qian looked excited, as if she was crazy, "That's not Fang Ye, no."

This appearance shocked everyone present. No matter how the police asked, She Qian could only say "He is not Fang Ye" over and over again.

Seeing She Qian's crazy look, everyone felt troubled.

Qin Henian heard voices in his earphones. He tilted his head slightly, then frowned, stopped the interrogation, and led people out of the interrogation room.

As soon as he came out, he asked, "She Qian, do you have hallucinations?"

Mu Minghao nodded, "I just contacted She Qian's doctor. He said that She Qian has delusional disorder for four years."

Qin Henian carefully recalled the previous scene. She Qian seemed to get excited when she mentioned Fang Ye, "When we go in for interrogation later, don't mention Fang Ye, just ask about the murder process."

The interrogation resumed, and the police asked directly, "How did you kill this person?"

Whether it was those in the interrogation room or those watching the surveillance, their hearts were in their throats. Fortunately, She Qian did not go crazy and narrated the murder process.

At 6 o'clock in the evening on June 11, She Qian came to Fang Ye's house. The two were boyfriend and girlfriend. She Qian stayed at Fang Ye's house that night.

Before going to bed, She Qian gave Fang Ye a glass of milk with added ingredients, and then chopped Fang Ye to death. After Fang Ye died, She Qian washed off the blood on her body in the bathroom and left.

Later, members of the security team also found the murder weapon at She Qian's house.