Officer Takagi racked his brains, trying to move things along. "Right! Let's check for gunpowder smoke residue first—anyone who fired a gun would have it on them. Whichever one of you four has gunpowder residue is the killer!"
"..."
As soon as he finished speaking, the four suspects stared at him in silent disbelief.
Officer Takagi scratched his head, vaguely feeling that something was off. Those didn't seem like panicked looks from people who had been exposed. They looked more like they were staring at...
"An idiot." Sato Miwako slapped the back of his head. "Didn't Jiang Xia just say they went to a shooting club before coming to the ice rink? After spending an entire afternoon in a place like that, it would be stranger if they didn't have gunpowder residue on them."
The suspects hurriedly nodded, looking at Sato Miwako as though she were a just and incorruptible magistrate. But on second thought, the killer was still among the four of them. A one-in-four chance did not seem all that low.
Steel Man hurriedly offered his analysis. "Actually, the lockers here often don't latch properly. If we hadn't shut the doors properly, someone else might have taken advantage of the chaos to steal our guns and then shot Chihiro."
Before the police could say anything, his companion refuted him. The dark-skinned man said coldly, "Clay pigeon shooting isn't exactly a common hobby. We all disassembled our guns before putting them into our cases. An ordinary person wouldn't recognize them as gun cases at a glance, and even if they did, they wouldn't know how to assemble the guns. Compared with some outsider who happened to see the lockers, the killer is more likely to be one of the four of us."
"You!" His three companions had been stabbed