"The deceased did not die from spider venom at all. The killer merely used a thumbtack to pin the spider to the telephone receiver. When the deceased answered the phone, he felt his ear get pricked and saw the spider, so naturally he instinctively assumed he had been bitten—
"Then the killer had taken away the redback black widow antivenom beforehand. Professor Niino was shocked and panicked, which triggered his heart condition and led to his death!
"That's right. The killer was the one who, after coming in, kept trying to conceal the fact that the spider was already dead and destroyed the thumbtack in the telephone receiver—Miss Miwa Yasuda!
"Besides your sudden, supposedly startled act of smashing the spider's corpse, there is also the corner of your phone case. It is covered in scratches now, isn't it? Professor Niino's telephone receiver is covered in the same kind of scratches.
"A test will reveal it. I believe those scratches were left when you, Reporter Yasuda, used your own phone to break off the thumbtack!"
Kudo Shinichi's voice came through Conan's phone. Apparently, he had recorded that lengthy message in advance.
Partly to compete with Shiraishi, and partly because Mori was absent today, he had deliberately not prompted anyone else and had made the deduction himself.
"All right, I have something to do. If you have any objections, you can talk to Conan." Shinichi left those final words before hanging up.
At the same time, the female reporter Miwa Yasuda immediately went OTR—
"That's right, I killed him—he had always been stealing Itokawa's research results—"
Shiraishi:—
The same familiar motive again. Could these researchers stop causing trouble for once?
Even if you wanted to plagiarize, would it kill you to give them second authorship?
The only slight difference this time was