It was a friend of the game developer. After they returned home from their office job, they realized they forgot to buy dinner, and went back out to get some food to eat. When they returned their room was filled with smoke and the ceiling was on fire. After they put out the fire, they got into contact with the fire department and subsequently police that had arrived, but nobody knew the cause of the fire, and their friend was actually suspected as being the one who started it. However, as a precautionary measure, the police checked each apartment room in search of any anomalies. On the floor above the one the game dev's friend lived, there was one room that didn't get a response. The police contacted the landlord and had them open the door to find a corpse in the back of the room. The time of death was unclear, but it must have been during the Summer based on the decomposition of the corpse, and the room was filled up to the entrance with bugs that had been feasting on the corpse. In the end, the cause of the fire was never found out. Neither was the dead person's cause of death. Perhaps they started the fire so that their body would be found...