South Korea In the fall of 1988, a 13-year-old girl was raped and murdered in bed at her home in Hwaseong.

Crime will stir in other places.

Nearly a year after the girl was killed, police arrived at Yoon's man's house (his full name was not disclosed in accordance with Korean privacy laws) the 22-year-old mechanic, as soon as he was prepared

The police took Yoon into a small room at the local police station, interrogating him for three days about the rape and murder of a 13-year-old girl.

According to a confession before the police, Yoon walked on the night of the murder.

Yoon was convicted of rape and murder of a 13-year-old girl and was sentenced to life imprisonment in 1990 but sentenced to prison after appeal.

Before 1986, Hwaseong was a peaceful place.

Everyone at Taean-eup knows each other, said Hong Seong-jae, owner of Yoon's agricultural machinery repair shop.

But that all changed in 1986. In September of that year, a woman was murdered, becoming the first victim of a series of murders known as the Hwaseong murder series.

The time of the murders.

The youngest victims are young women, the oldest is 71 years old.

"There were no street lights at the time and it was very dark," said the 55-year-old Park woman, who worked at a factory in Hwaseong in the 1980s.

Hong said the men were afraid of being questioned by the police.

When the first victim was murdered, the responsibility of investigating rests with the local police.

The police are sure they are looking for a serial killer, but they have very few clues.

The first 5 murders occurred within 6 km of Hwaseong, so the police split into groups of two, overseeing each 100-meter section.

The location of the murder.

Female police officers dressed in red to lure the killer into a trap, others asked for advice from a "lady" who advised them to track down the man who lost a finger.

But the murders continue.

Yoon was the only person convicted in 10 murders.

For years, it seems that one of Korea's most notorious serial killers will never be found.

But the murders still haunt Hwaseong, though the villages have now merged into one small city.

In September 2019, Ban Gi-soo, from the Gyeonggi Nambu provincial police force, issued a shocking notice.

A month later, Lee admitted to carrying out all 10 murders in Hwaseong and 4 others without police providing information.

This is a major breakthrough of one of South Korea's most notorious serial murders.

Lee's confession is not enough to forgive Yoon.

Yoon is working at a leather processing factory in North Chungcheong Province, a few hours by train from Seoul.

During his childhood, the Yoon family moved frequently.

Yoon is a heavy smoker and has never dated.

Yoon said that after being taken away by the police, he was handcuffed in the interrogation room for three days, received very little food and was only allowed to leave the room to go to the toilet.

"Those three days were like a nightmare," he said.

Now, Yoon thinks that he has been mistreated, but at that time, Yoon didn't know anything about the law, he still hadn't finished elementary school.

Last December, the Gyeonggi Namu police opened an investigation of seven police officers and a prosecutor worked in the initial investigation, including a review of allegations of abuse.

In fact, Yoon's experience is not entirely abnormal.

Not only did Yoon accuse the police of torture.

Kim, one of his clients, was accused of causing the fourth and fifth murders after a US woman said she saw him in a dream.

Last year, Ban Gi-soo said officials were investigating whether police mistreated suspects during the initial investigation, reviewing allegations that a man was "watered".

Yoon is determined to clear his sentence, the retrial will begin this week.

Lee Chun-jae's confession will be very important.

However, there is still a problem with Yoon's case.

Those hairs have not been DNA tested and even if they match Yoon, his lawyer thinks that Yoon's sample may have been mixed with evidence from the crime scene.

The retrial is expected to take several months.

Yoon said that nothing could make up for 20 years of life lost in prison.

Yoon knew Lee would not be tried for crimes, as well as the police he accused of torturing him, because so many years had passed since the nights he had not slept in the interrogation room.

He just wanted to live the rest of his life as an innocent.