Ki Yung Park and the 2001 Houston Mass Murder
Overview
On January 9, 2001, 54-year-old Ki Yung Park murdered four people during a violent rampage across Houston, Texas. The victims were Park’s estranged wife, Byong Sun Park, and three members of the Chang family: Chong Chang, his wife, Hyun Chang, and their daughter, Kathy Chang.
The murders began at the convenience store Park operated with his estranged wife and continued at Amko Trading, a wholesale clothing and perfume business located at 9889 Harwin Drive in southwest Houston. After killing the Chang family, Park shot himself as police officers surrounded the business. He later died at a hospital.
Background and Marital Problems
Ki Yung Park was born in 1947 and had previously served in the military. He and his wife, Byong Sun Park, operated the Stop By Market No. 2 convenience store in northwest Houston. By January 2001, the couple was estranged and reportedly experiencing serious marital difficulties.
People who worked near the convenience store recalled that Park sometimes shouted at his wife while they were working. Byong Sun would occasionally be seen crying, although she reportedly told concerned acquaintances that everything was all right. Police records also indicated that she had filed an assault complaint against Park in 1998. Park was arrested, and the Houston Police Department’s Family Violence Unit offered her follow-up counseling.
In the days before the murders, Park’s behavior reportedly became increasingly erratic. Employees at a nearby automotive business noticed that he repeatedly opened and closed the convenience store at unusual times. On some days, the store remained closed entirely. On the morning of January 9, Park was seen outside cleaning the parking lot. Witnesses described him as looking tired, disheveled, and burdened by stress.
The Murder of Byong Sun Park
At some point before noon on January 9, 2001, Park shot his estranged wife inside the Stop By Market No. 2 convenience store. Byong Sun Park, age 42, was shot in the head. Her body was then left inside a walk-in cooler at the business.
The murder was not immediately discovered. Park left the convenience store and traveled across Houston toward Amko Trading. Byong Sun’s body remained concealed in the cooler until approximately four hours after the shooting at Amko Trading, when investigators searched the convenience store and found her.
Park’s Dispute With Chong Chang
Amko Trading was owned and operated by 58-year-old Chong Chang and members of his family. The business sold clothing, perfume, and other wholesale merchandise in a commercial area of southwest Houston. Park had known Chong Chang for years and had reportedly worked for him in the past.
Police and acquaintances said Park had developed a bitter fixation on Chong Chang. He accused Chang of having an affair with Byong Sun and believed Chang was interfering in his marriage. Park also accused Chang of attempting to damage or destroy his convenience-store business.
Friends and representatives of the Chang family rejected the accusations. They described Chong Chang as a hardworking businessman and said Park’s allegations had no credible basis. Those who knew Park believed his suspicions were connected to his increasingly unstable and irrational behavior.
The Attack at Amko Trading
At approximately noon on January 9, Park arrived at Amko Trading at 9889 Harwin Drive, near South Gessner Road. He entered the store carrying two pistols. Witnesses reported that he made a statement accusing the family of having destroyed his life before he began firing.
Park first targeted 23-year-old Kathy Chang, the daughter of Chong and Hyun Chang. He then pursued Chong Chang as he attempted to escape. Hyun Chang, age 54, reportedly tried to hide in a bathroom, but Park found and shot her. All three members of the family suffered fatal gunshot wounds to the head.
Although other employees were reportedly inside or near the business, Park appeared focused specifically on the Chang family. At least one employee fled after hearing gunfire and escaped without being shot. Park did not indiscriminately pursue everyone at the business; instead, he deliberately hunted the three family members he blamed for his personal and financial problems.
Police Response and Park’s Suicide
Houston police officers responded to reports of gunfire at Amko Trading and surrounded the building. A police tactical team entered and found the bodies of Chong, Hyun, and Kathy Chang. Officers also found Park suffering from a self-inflicted gunshot wound to the head.
Two handguns were recovered at the scene, and investigators determined that both weapons appeared to have been fired. Park was transported to a hospital, where he died from his injuries. His death brought the immediate threat to an end but left investigators searching for the reason behind the attack.
Discovery of the Fourth Victim
Several hours after the murders at Amko Trading, investigators went to the convenience store Park had operated with his wife. During their search, they found Byong Sun Park’s body inside the store’s cooler.
The discovery established that Park’s rampage had begun before he arrived at Amko Trading. Investigators concluded that he murdered his wife first and then drove to the Chang family’s business to continue his attack. Including Park, five people died during the events of January 9, 2001.
Confirmed Victims
- Byong Sun Park, 42: Ki Yung Park’s estranged wife. She was shot in the head on January 9, 2001, inside the Stop By Market No. 2 convenience store in northwest Houston, Texas. Her body was found inside a walk-in cooler approximately four hours after the Amko Trading attack.
- Chong Chang, 58: Owner of Amko Trading and a longtime acquaintance of Park. He was shot in the head on January 9, 2001, at 9889 Harwin Drive in Houston, Texas, after reportedly attempting to escape from Park.
- Hyun Chang, 54: Wife of Chong Chang. She was shot in the head on January 9, 2001, inside Amko Trading after reportedly attempting to hide in a bathroom.
- Kathy Chang, 23: Daughter of Chong and Hyun Chang. She was shot in the head on January 9, 2001, inside her family’s Amko Trading business. Witness accounts indicated that she was the first member of the Chang family Park attacked.
The Chang Family
Chong and Hyun Chang were Korean immigrants who had lived in the United States for many years. Friends described them as generous and hardworking people who frequently worked long days to make their family business successful. Chong Chang was also reportedly involved with Houston’s Korean community and served on the board of Radio Korea-Houston.
The family had recently celebrated Chong’s birthday, and another daughter had recently married. Their business was thriving, making the sudden destruction of the family particularly shocking to friends, employees, and members of Houston’s Korean American community.
Motive
Investigators believed jealousy, marital conflict, paranoia, and a perceived business feud contributed to the murders. Park apparently believed that Chong Chang was involved in an affair with Byong Sun and was trying to ruin Park financially. No credible evidence was publicly presented to support either allegation.
People acquainted with Park said he had recently appeared mentally disturbed and overwhelmed by stress. His unusual behavior in the days before the killings suggested that his emotional and psychological condition was deteriorating. However, because Park died before he could be questioned, investigators were unable to obtain a complete explanation of his motives or determine how long he had planned the attacks.
Aftermath
The January 9, 2001 killings devastated two families and shocked Houston’s Korean American community. Community organizations helped arrange funeral assistance and provided support to surviving relatives. Despite Park’s actions, community representatives also expressed concern for the children and relatives he left behind.
The case ended without a trial because Park died from his self-inflicted wound. Police classified the deaths of Byong Sun Park and the three members of the Chang family as homicides, while Park’s death was ruled a suicide. The attack remains one of Houston’s notable family- and business-related mass murders of the early 2000s.
