[김성재 변사사건 실화르포⑦] Forensic scientists on the side of prosecutors and lawyers clashed in first trial trial
“Death due to synergistic effect of combined administration of zoletyl and magnesium sulfate” vs. “No lethal dose of detected concentration”

Sung-Jin Kim’s pictorial photo of Sung-Jin Ahn featured in her solo debut album. Artist Ahn, who captured numerous celebrities on camera, chose Kim Seong-jae as the best subject he met in a media interview. Bereaved family
① The night of fate ② The injection mark on the right arm ③ Who objected to the autopsy ④ Complaint and animal anesthetic ⑤ The informant and magnesium sulfate ⑥ Missing evidence and first trial
⑦ Forensic Medicine vs Forensic Medicine
K Kim Sung-jae’s girlfriend and defendant
Sixteen Kim Sung-jae’s mother
L Seongjae Kim Manager
Belly○○ Banpo Animal Hospital Director
Heesun Jeong Noodles and Toxic Products Manager
The issue of the Kim Seong-jae case trial was whether the victim’s time of death was before or after 3:40 a.m. when the defendant K left the lodge, and whether the victim’s death was due to the death of the defendant, such as Zolletil 50 purchased by the defendant. Throughout the trial, there was a fight between those who tried to prove the charges and those who tried to prove their innocence. The 4th and 5th trials were held for one day on Tuesday, March 26, 1996. It was 10 am and 2 pm. It was the Supreme Court of No. 303, the same as the previous trial. The judge was in a hurry to the trial, continuing the trial twice a day.
Veterinary hospital head overturned the statement of police and prosecution
At the morning trial, there was a tight question and answer between prosecutor and K. The prosecutor pressed forensic scientists, saying that the common estimated time of death was before 2:50 a.m., when he was with K. K repeatedly insisted that Kim Sung-jae was alive until he left the hotel. The prosecutor asked why he left the hotel while sleeping. K stated that she had never slept before and that she woke up on the way and came home. When K was discovered trying to commit suicide before the incident, the prosecutor asked if he had a thought of disregarding himself and his life, and a nervous war broke out with K.One The judge concluded the fourth trial by saying that the trial would be held again at 2 pm. At 2 pm that day, the 5th trial was held. At the trial in the afternoon, Banpo Animal Hospital Director Bae ○○, who reported that they sold zoletyl 50 and magnesium sulfate to K, and Yuk Mi-seung, the mother of Kim Seong-jae, were present. On this day, Bae ○○ overturned the previous statement, saying that the sale of the Zoletil 50 may be in early September, which he said in an investigation by the police and prosecution in early November 1995. The more the difference between the incident date and the purchase date of Zoletil 50, the accused’s suspicion became relatively lighter. Bae ○○ immigrated to Canada after attending the trial witness on that day. On this day, lawyers asked why Yuk Mi-seung deposited 740,000 won and 5 million won into the accused’s account twice before the incident. Wasn’t he close enough to trust K to deal with money? Mi-Seung Yuk said that 740,000 won was paid off for the clothes that Seong-jae Kim had borrowed during his lifetime, and 5 million won was deposited to deliver the living expenses of Kim Seong-jae while living in the United States.
Proof of the contents of the request for discontinuation of serialization and posting sent to. The testimony of Kim Sung-jae’s acquaintances at the time that he fired a gas gun and bound him is not true.” alt=”On February 17, 2021, K’s lawyer <한겨레>Proof of the contents of the request for discontinuation of serialization and posting sent to. The testimony of Kim Sung-jae’s acquaintances at the time that he fired a gas gun and bound him is not true.” />
Proof of the contents of the request for discontinuation of serialization and posting sent by the lawyer of K on February 17, 2021. The testimony of Kim Sung-jae’s acquaintances at the time that he fired a gas gun and bound him is not true.
It was a sword and shield fight. The prosecution and lawyers have dug into the loopholes of the other party’s logic. They had reasons to lead the trial as they intended. The judge ended the trial by announcing the sixth trial date. The 6th~7th trial was also held in the morning and afternoon on the same day. It was April 15th. At 10 am, a witness interrogation was conducted on Jeong Jae-moon, the senior manager of the Kim Sung-jae agency. The lawyer continued to question, focusing on whether Kim Seong-jae’s agency manipulated the scene of the case. At 2 pm on the same day, the 7th trial continued. Manager L came to court as a witness. L claimed to have witnessed Kim Seong-jae, who was shot by a gas gun at the accused’s house in early July 1995. At that time, he said that he heard from Kim Seong-jae that K shot a gas gun saying,’You have to die,’ with a living in the eyes. At the time, Kim Seong-jae said his face was red and his clothes were torn. At this time, the lawyer asked if the damage caused by the gas gun was a bit stinging and did not smell of gas. L confronted Kim Seong-jae that it was true that his body smelled gas. At the time, the lawyers argued that “the gas gun was fired due to K’s operation error,” and that “the gas gun at the time was loaded with water ammunition, a test bomb that was harmless to the human body.”
Those many reporters disappeared
In the afternoon trial, Kim Gwang-hoon and Kim Seong-jae of the National Institute for Scientific Investigation attended as witnesses, the head of a poisonous substance, Jeong Hee-seon, who discovered zoletyl 50 and magnesium sulfate in their bodies. On this day, Kwang-Hoon Kim died from the psychotropic drug phencyclidine (PCP), which is less effective than tiletamine, and even the amount (0.3mg/ml) was detected in the body of Kim Sungjae (0.85mg/ml). ml).

The appearance of the defendant K, who was escorted to the Western District Office of the Seoul District Court during the first trial trial. It is wearing a yellow number attached to the murder suspect. Provide sports trends
In addition, for zolazepam, another substance from the corpse, the blood concentration of zolazepam is lower than in the case of death from diazepam, a similar compound, but because the drug is stronger, it is the amount that the victim can die sufficiently. As a result, it was judged to have died due to a combination of poisoning by zoletyl 50 and magnesium sulfate. The magnesium salt content in Kim Seong-jae’s urine was 5 to 15 times higher than that of the control carcass. The controversy over lethal dose could be easily cleared up if one bottle of Zoletil 50 was put into the body and how much it would be. However, the problem was that the amount of metabolism varies from person to person, and even if the same amount is injected, the amount detected by the body is inevitably different. No one knew whether the Zoletil 50 administered to Kim Sung-jae’s body was one or two, but the legal dispute focused on whether or not one bottle was a lethal dose because of the statement that the veterinary hospital director had sold one bottle. On April 15th, at 2pm, the 7th trial continued. In the afternoon trial, Hee-sun Chung, who was present as a witness, testified that the synergistic effect could occur and the drug effect could appear stronger if zoletil 50 and magnesium sulfate were administered to the human body together. It also added that it would be very difficult for the general public to obtain Zoletil 50. The court ended the afternoon trial by announcing the date of the next trial. Matters addressed through interrogation of the defendants and witnesses in the courtroom beyond the middle were △whether zoletyl 50 and magnesium sulfate were lethal, △the death on the autopsy report △the motive for the murder according to the relationship between Kim Sung-jae and K.

Kim Seong-jae’s backdancer Noah Ryu attended the first trial as a witness and testified that he had not found any injection marks on Kim Seong-jae’s arm until the night before the incident. The picture shows Kim Seong-jae taking off his top in the choreography practice room before his solo debut the day before the incident. Save YouTube screen
The 8th and 9th trials were held on Monday, April 29th at 10am and 2pm. Hee-sun Chung, who again attended the morning trial as a witness on the side of the prosecution, testified that he did not know whether the magnesium sulfate detected in the corpse was a lethal dose, and that he believed that there was no possibility of abuse of tiletamine and zorazepam (possibility to substitute drugs). The judge said he would hold the trial again at 2 pm. As the trial reached the end, social interest fell sharply compared to the initial stage. There was no media report relaying the trial. Many reporters disappeared.
Dogs hit by Zoletil 50 won’t die
At 2 pm, the 9th trial was held. Back dancer Noah Ryu, one of the first to discover Kim Sung-jae, stood in court. Noah Ryu testified that the night before the incident, there were no injection marks on Kim Sung-jae’s arm, and that Kim Sung-jae and K’s usual relationship was not good. Whenever I call K in the US, he says, “Lee x ah, please stop. It’s annoying.” When I came to Korea, I said that the two had an argument. He said that K was going to Los Angeles (LA) in the United States, so he certainly remembers that Kim Sung-jae never allowed him to come. After returning home, Kim Seong-jae said that he met K every day because he responded reluctantly to K’s request to be good because he would go to Japan for a week. The court ended the ninth trial after setting the next trial date. The 10th-11th trials were held on Monday, May 13th at 10am and 2pm. At the 10th trial, K’s friend and a veterinarian, requested by the lawyer, stood before the court as witnesses. A counterattack on the part of the lawyer had begun. Jeon ○○, a friend of K, testified that K was very popular when he was in school, saying that he had many friends because he was cheerful and cheerful. He added that there was no problem with Kim Sung-jae. He said he had never heard of studying in Japan from K.

Recently, the K side is raising the possibility that Kim Sung-jae had been drugged with backdancers in the United States before returning home. In the music video filmed in Los Angeles at the time, there are several scenes of Kim Seong-jae wearing a running shirt as above. How many drug addicts will insist on wearing clothes that show signs of medication? Save YouTube screen
The lawyer continued the interrogation of the veterinarian Kim ○○ prepared as a conversion card. The lawyer had asked Kim ○○ for an experiment. It was an experiment on whether or not the contents of tiletamine and zolazepam detected in Kim Sung-jae’s body were injected into dogs. According to the results of the experiment, Kim ○○ said that he did not think that Zoletil 50 could act as a lethal dose to a young man of 180 cm tall and 75 kg in weight. In addition, when administered to a dog with the amount of zoletyl 50 from the body of the scepter, all three of them woke up within an hour without dying. At this time, magnesium sulfate detected in the carcasses of Seongjae Kim in animal experiments was not injected into the dog. It can be pointed out that the experiment was not conducted under the same conditions. The lawyer submitted a video recording of the veterinarian’s experiment to the court. At 2 pm that day, the trial was held again. It was the 11th trial. Kim Gwang-hoon, a forensic scholar who autopsied Kim Sung-jae, and Professor Hwang Jeok-joon of the Korea University Forensic Research Institute, who assessed the death of the death, stood in court again as witnesses on the side of the prosecution. First, Kim Gwang-hoon said that Kim Sung-jae’s death was due to a drug addiction, and that the detected concentration is considered a lethal dose, but there is no objective data, so that the lethal dose cannot be determined. He said that taking zoletyl 50 and magnesium sulfate together could speed up the time to death and could result in immediate death, and the time of death was before 3 a.m. based on bilateral half-time. In an immediate cross-examination by the lawyer, Kim Kwang-hoon answered yes to the question of whether the US regulates severely restricting tiletamine, the raw material of Zoletil 50, as a drug. He also testified that he agrees with the opinion of Yonsei University Professor Gyeong-Hwan Kim that the lethal dose of magnesium salt is 360-420 ppm, and that he agrees with the view that a blood concentration of magnesium salt of 67.8 ppm does not affect the human body. It was a testimony in favor of the accused. After the witness interrogation against Kim Kwang-hoon, the prosecutor conducted a witness interrogation against Hwang Jeok-jun. Hwang Jeok-jun said that it is certain that all of the injection marks from the corpse were injected at the time of survival. The estimated time of death is between midnight on November 20 and 2:50 am, and it is unlikely that it will be after that. It was a sentence in which the prosecutor took back the defense attorney’s counterattack against the lethal dose at the estimated time of death. The lawyer, who received a re-attack from the prosecution’s side, prepared for the next trial. He requested a forensic scholar on the side of the lawyer as a witness. The presiding judge said he would hold a decision on the next date. At the decision trial, the prosecution’s sentence is made.

Sung-Jin Kim’s pictorial photo of Sung-Jin Ahn featured in her solo debut album. It was filmed in the US before returning home. It shows a style that is hard to believe that it was 26 years ago. Bereaved family
Surprising testimony from an eyewitness in front of the hotel
The decision hearing was held on Monday, May 20 at 10 am. Forensic scholar Lee Kwang-soo stood in court as a witness on the side of the lawyer. He testified that Kim Sung-jae’s blood magnesium salt content (67.8 ppm) would have had no abnormalities in the human body. He also said he was convinced that only a concentration of 0.85 μg (micrograms) of tiletamine in the corpse would not be a lethal dose. The prosecution’s claim that forensic scientists on the prosecution’s side that administration of zoletyl 50 and magnesium sulfate together can cause a synergistic effect is not medically natural and cannot necessarily be combined to cause a synergistic effect.2
The prosecution’s forensic medicine and the lawyer’s forensic medicine fought fiercely. For one issue, the interpretation was opposite to the pole. A witness who was in front of the hotel early on the day of the incident also attended as the last witness at the decision trial. His testimony was amazing. By Oh Seung-hoon, staff reporter [email protected]
One. K First Trial Statement
2. Lee Kwang-soo 1st trial trial statement, K attorney proof of contents
In the early morning of November 20, 1995, Kim Seong-jae (23), a former member of the popular dance group Deuce, was found dead at the Swiss Grand Hotel in Hongeun-dong, Seodaemun-gu, Seoul. It was the day after the successful solo debut stage after the dissolution of Deuce. Deuce, who debuted as a song in April 1993, was an icon of the music industry in the 1990s along with’Seo Taiji and Children’. While the musical basis of Seo Tae-ji and the children was rock, Deuce, made up of Kim Seong-jae and Lee Hyun-do, was a musician who consistently pursued black music based on New Jack Swing and Sol. This is why Deuce is said to be the origin of Korean hip-hop. It has been 26 years since he left. During those indifferent years, the suspicions surrounding Kim Seong-jae’s death have not yet been resolved. This is why the Kim Seong-jae case is called the largest unsanctioned case in the Korean entertainment industry. The bereaved family of Kim Sung-jae still lives in pain today. The sudden death of the eldest son, who was the most serious, caused the life of the family to fall. Because he did not know who the killer was or the reason for his death, he could not even let the dead completely go. Korean society should look back on whether there were any problems with the investigation at the time so that this tragedy does not repeat itself. In particular, the Kim Seong-jae case is a representative case that awakens the importance of the first police investigation. The problem of the autopsy system at the time when the case was plunged into a labyrinth did not change much today. Issues such as rejection or adoption of expert testimony are also valid. All are public interest values that should be pointed out in the case of Kim Seong-jae’s case. For the past 1 year and 6 months, in order to find out the truth of the day, I reviewed more than 3,000 pages of related documents such as investigation and trial records, newspapers and magazine articles at the time, and interviewed investigative agencies and court officials at the time. I met bereaved family members and acquaintances, and sought advice from forensic scientists and doctors. The lawyers of former girlfriend Kim Seong-jae, who were convicted of murder and sentenced to life imprisonment in the first trial, were finally confirmed innocent in the Supreme Court, also contacted several times. Now, we look into the truth of death that shocked Korean society 26 years ago.