Odaeyang mass suicide: Thirty-three individuals linked to a religious cult are found dead in the attic of a cafeteria in Yongin, South Korea. Investigators attribute their deaths to a murder-suicide pact.

The Evangelical Baptist Church (EBC) of Korea, was established in 1962 by Yoo Byung-eun and Pastor Kwon Shin-chan. The name of the church was changed to EBC in 1981. It is not connected to the Korea Baptist Convention. In South Korea, EBC is commonly known as Guwonpa, meaning Salvation Sect, from the Korean term guwon (구원), "salvation".

Yongin is a city in the Seoul Metropolitan Area, the largest in Gyeonggi Province, South Korea. With a population over 1 million, the city has developed rapidly since the 21st century, recording the highest population growth of any city in the country. Yongin is a multi-nuclear city with multiple urban centers, not a single nuclear structure, and Giheung District crosses the Yeongdong Expressway and Dongbaek, while Suji District crosses Pungdeokcheon Stream and Jukjeon.

A murder–suicide is an act where an individual intentionally kills one or more people before or while also killing themselves. The combination of murder and suicide can take various forms:

• Suicide after or during murder inflicted on others
  • Suicide after murder to escape criminal punishment(s)
  • Suicide after murder as a form of self-punishment due to guilt
• Murder that entails suicide, such as suicide bombing
  • Suicide by pilot, or the deliberate crash of a vehicle carrying the perpetrator and others
• Murder of an officer or bystander during the act of suicide by cop
• Suicide before or after murder by proxy
• Murder linked with a person with suicidal ideation
  • Joint suicide in the form of killing the other with consent, and then killing oneself

August 29 is the 241st day of the year in the Gregorian calendar; 124 days remain until the end of the year.