The cops came to smash the sit-in struggle. They came to the building ("they" = the Korean SWAT team) to remove squatters by using coercion and violence. That's why demonstrators are chanting "get rid of the murderous police" in the streets of seoul everyday.

The squatter had prepared molotov cocktails with paint thinner in order to defend themselves from police and private militias who were expected to come and coercively relocate the squatters using violence. The police had a surprise attack at 6 am and sprayed water cannons into the building which spread paint thinner all over the place, causing a fire that killed 5 people and 1 cop. The police probably didn't intend to murder people, but they did intend to use violence and coercion, and their reckless brutality ended the lives of 6 people.

Tomorrow the big legal decision will be made regarding "who is responsible." The day after tomorrow, we will have another street demonstration and police will probably attack and violently suppress people again. That's what's going on now. I'll try to answer your questions, but also stay in tuned to the Korea IMC website for new information on what's happening. Thanks comrade.