"Then let's wait and see." Tang Ze took the intercom from Masami Osamu, then led everyone out of the underground parking lot and came to the temporary monitoring room built outside.
Looking at the two screens erected in front of him, Tang Ze turned on the intercom and started giving orders.
On the screen, a fully armed man waved to everyone, then walked straight to the fire alarm button on the wall and turned it on.
"The carbon dioxide fire extinguishing equipment will be activated in thirty seconds. Please evacuate quickly to avoid danger..."
Along with the flashing red warning lights, a mechanical female voice resounded throughout the underground parking lot.
Twenty seconds was neither long nor short, and soon countless fire extinguishing devices on the ceiling of the underground parking lot began to spray white carbon dioxide.
In the parking lot, masked staff stood safely in the underground parking lot, and even playfully walked around in the white spray and waved at the camera.
But the scene at this moment did not make the people in front of the screen laugh. They looked serious and it was obvious that they had realized something.
"Look at the other screen."
He spoke while lying down, diverting everyone's attention to another screen.
The screen did not show the staff still in the room, but a white rectangular instrument.
Amidst the dense white smoke, numbers on a small rectangular screen on the machine kept jumping.
"This value..." Masashi looked at the screen with a serious expression: "It's enough to be fatal."
"Although carbon dioxide is a very common substance, even produced by our own breathing and can be used to make carbonated drinks, it does not mean that it is without any danger."
Tang Ze looked at the instrument on the screen and explained, "But if the concentration exceeds 20% in an instant, without any preparation, you will suffocate to death within seconds."
"So the murderer lured the deceased to the underground parking lot and then used the carbon dioxide instantly produced by the fire extinguisher to kill Takekawa!?"
Kujo Hiroshi, who was standing by, screamed in surprise when he heard this, turned his head to look at Izumizu Yoshiko and Fukayama Chieko beside him, and subconsciously took two steps back.
It was as if he had seen some terrifying existence.
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