In 2006, there was a mass murder in South Korea that killed approximately 800.000 people and people decided to call it "minus 8" because of how many people died.

There is recorded evidence of the events, and there are two versions. A censored one and an uncensored one. Many people know about the censored video, but the original version is almost lost.

Luckily, the son of the first person to record it had the original uncensored evidence when he passed away in 2019. The son uploaded the video on a dark forum also from 2019.

Google "minus 8 no censorship" to watch the full video.