Conan Mobile Toilet Murder Case
In the TV overseas split version Episode 798 of Detective Conan, the mobile toilet murder case occurs, and the suspect Kyogoku Makoto is not the real culprit. Here is a detailed introduction to the case:
Case Background
When the main characters went to a bowling alley, they met two female middle school teachers. From them, they learned that the male teacher traveling with them was resting in the car. Later, the male teacher was found dead in a mobile toilet in the parking lot, soaked all over, and initially identified as having drowned. Since Kyogoku Makoto had had a conflict with one of the female teachers before, he was listed as a suspect by the police.
The Murderer's Modus Operandi
The murderer used a simple experimental principle to commit the crime. First, the murderer blocked the drain outside the toilet so that when it rained, the accumulated water would gradually rise. Then, the murderer used a stun gun to knock the victim unconscious and placed the unconscious victim inside the mobile toilet. On the shelf above the toilet, the murderer placed a large amount of burning kerosene. After that, the murderer closed the toilet door and sealed the gaps in the door with tape, leaving a gap at the bottom of the door.
Principle Similar to the 'Candle Sucking Water' Experiment
When the kerosene lamp burns, it consumes the oxygen inside the toilet and at the same time causes the air inside the toilet to expand due to heat and partially escape through the gap at the bottom. As the kerosene lamp gradually goes out, the air temperature inside the toilet drops, and the air pressure also decreases. At this time, because the drain outside the toilet is blocked, the accumulated water has risen to a certain height. The external atmospheric pressure will force the water through the gap at the bottom into the toilet, causing the water level inside the toilet to rise, and ultimately the victim drowns. This principle is similar to the 'Candle Sucking Water' experiment. In the 'Candle Sucking Water' experiment, the candle burns and consumes oxygen, reducing the air pressure inside the container, and the external atmospheric pressure forces the water into the container. Through this clever modus operandi, the murderer successfully created a seemingly impossible drowning scene and misled the direction of the police investigation.
