"Yes! I'll go right away!"
At this time, the two people in the house had already carefully inspected the situation at the scene. Hagiwara Kenji did not rush to check the condition of the body. Instead, he squatted at the door and checked the lock. After confirming that there were no signs of forced lock picking, he shouted to Fujiwara Yuu inside:
"Fujiwara-chan, there's no sign of the door lock being pried open, and the fingerprints are wiped clean. It seems the murderer stood outside the door and watched Instructor Nakatani die before unlocking the door and leaving."
Fujiwara Yuu looked up at the transparent glass on the top edge of the wooden door. It seemed to align with his second guess. But even so, there was no way to rule out Sano Taiichi as a suspect. As the first eyewitness, he could indeed do that.
He withdrew his gaze and continued to carefully observe Shuhei Nakatani's body. There were no signs of struggle on his body. The only wound was a small area of trauma where his forehead hit the ground. He must have slipped when he realized something was wrong and tried to leave the bathroom.
"How is it? Can the cause of death be determined?" Onizuka Hachizo asked at the right time.
After Fujiwara Yuu held Nakatani Shuhei's body in a supine position, he said in a firm tone:
"The cause of death for the victim, Shuhei Nakatani, was hydrogen sulfide poisoning. There was an unsealed sulfuric acid bath ball next to the bathtub. It's a bath additive that dissolves automatically when placed in water. I believe the killer injected toilet cleaner into the bath ball. During the bath, the cleaner reacted with the sulfuric acid to produce hydrogen sulfide, leading to his death from poisoning in the confined space."
He reached out and picked up the bath ball wrapper he found on the bathroom floor. He added, "There's still a rotten egg smell in the air, which is the smell of low concentrations of hydrogen sulfide. There's also a small pinhole on the wrapper, probably from the injection."
Onitsuka Yazo nodded with satisfaction. He looked at Nakano Shuhei's body with mixed feelings and said:
"That's a very accurate analysis. You're better than I thought."
Kenji Hagiwara raised his eyebrows slightly in surprise. No wonder the tsundere little Jinpei would praise him in front of him. It seems that he will become a very good policeman in the future.
Well, it should be very popular in the search class.
Thinking of this, he couldn't help but squat down closer to Fujiwara Yuu, and raised his voice:
"Hey, little Fujiwara, I'll hang out with you from now on, right?"
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