[I know Miyamoto Sanae is your competitor. If you don’t want her to participate in the regional competition this time, come and make a deal with me. 】
[I find it difficult to play the leading role in the Autumn Drama Festival because of your Kanda Akina from Class A. As long as you add something to her lunch tomorrow, I promise that I will do the same to Miyamoto Sanae. 】
[What you need to add is a powerful laxative that lasts for twenty-four hours and is not life-threatening. You can take advantage of your class’s physical education class tomorrow morning. The secret is to add it to a rich pickle or sauce. 】
[If you make up your mind, then as a secret code, use a marker to draw the lid of the shoe cabinet, and I will put the laxatives in your shoe cabinet before tomorrow. 】
[Never come in contact with me. Once you do so, our transaction will be canceled on the spot. In addition, please dispose of this note immediately. 】
At Airi Kida's house, the boy looked at the note she handed over, with no too surprised expression on his face.
The note was exactly the same as the one he saw at Kuboi Road's house before. It was a sticky note that could be seen everywhere in roadside shops. There was nothing special about it.
The handwriting on the note was also crooked, as if it was written with a non-dominant hand.
Even the content is almost the same. The only difference is that Kuboi's note asked her to poison her classmate Miyamoto Sanae, while Kida Airi's note asked her to poison her classmate Kanda Akina. Poison.
Also, on the note in the former case, a utility knife was used to scratch the lid of the shoe cabinet as a sign of approval, while in the latter case, a marker pen was used.
Assuming that the murderer of this case is someone else, that person is indeed very cautious. In order to prevent the two "poisoners" from becoming suspicious, he went to investigate the other party's shoe cabinet and realized that he was being used. He even Different notations are deliberately used.
"You accepted the offer on this note?"
Passing the note in his hand to Karasuma and the two detectives beside him, the boy looked at the high school girl with long twin tails sitting opposite and asked.
"Yes...yes." After hearing this, Kida Airi lowered her head, her face turned pale and she looked ashamed. She stuttered back: "Because I want to participate in the regional tennis competition...and, and I thought it was just a laxative." That’s it, it won’t cause any harm anyway, so, so... I didn’t expect it to be like this..."
Hearing her words, Karasuma bit his lip immediately and stared at her.
Yesterday, when Akina Kanda died of poison, the scream that rang out in the class was made by Airi Kida.
Because Airi Kida really never thought that the white powder could be poison...she actually killed someone? ! The person he killed was his classmate who was in the same class as him!
After learning that Miyamoto Sanae from Class E was also killed, Kida Airi panicked. She immediately realized that she was being used.
However, because her parents were away all the time, she was alone at home and had no one to discuss these matters with. Therefore, she could only hide at home alone and be afraid, until the boy came to her door...
"Do you have any guesses about the person who wrote this note?" Although he already had a guess in his mind, the boy still asked.
"It's Kuboi Riko! It must be her!" Upon hearing the boy's inquiry, Kida Airi immediately shouted, with an expression of resentment on her face and a rather excited tone.
“She is a member of the drama club like Akina-san, and she is the only one who can compete with Akina-san for the heroine of the drama festival!
Only she has the motive to kill Akina-san, and the murderer must be her! "
Well, even this place is the same as the Kuboi Road before.
The moment Kuboi Riko saw the note, he thought that the person who wrote the note must be Kida Airi, and the same was true for Kida Airi, who immediately thought of Kuboi Riko.
Riko Kuboi versus Akina Kanda, Airi Kida versus Sanae Miyamoto.
Everyone knows the contradiction between these two groups of people, but those who are motivated are not in the same class, and those who are in the same class are not motivated.
Therefore, someone cleverly relied on this to take advantage of the competitiveness and vanity of the two girls, and used their hands to complete an "exchange killing" technique.
What's even more powerful is that in the two notes left by the murderer, he first deceived and said it was just laxatives, and then both showed the signal that "the other party proposed this plan first, and I just cooperated with her."
The murderer used this method to make both girls feel lucky that "even if the matter is exposed, I will only be an accomplice." This invisibly weakened the two girls' tolerance for this crime. Resistance psychology.
This may be the reason why both Kuboi Riko and Kida Airi kept the note.
After all, this is strong evidence that proves that they are just "accomplices" and the real blame does not lie with them.
To be honest, this crime method is quite new, and it is the first time for the boy to encounter this type of case in so many years.
Of course, it's just something new.
Because this method also has many fatal loopholes.
The first is that before the incident, the two girls themselves did not realize that they were killing someone, so naturally they would not take any meticulous measures to cover up their criminal behavior, and they would inevitably leave a lot of traces at the scene.
For example, there may be fingerprints on the lunch box.
Even if the two girls were generous and disposed of the notes afterwards, the police could completely discover the existence of the two girls based on this, and further speculate that there are other masterminds behind the case.
Secondly, based on the analysis of the intelligence they currently have, the murderer is obviously someone who has murderous motives for both the deceased Kanda Akina and Miyamoto Sanae. As long as they can grasp this clue, they can greatly narrow the scope of the murderer and further target them. The identity of the real murderer...
"I understand, thank you Kida-san for your cooperation."
With an idea in mind, the boy stood up, smiled at Kida Airi, and left with Karasuma and the two detectives.
Back in the police car outside, the boy just sat down and said to the detective in the front row:
"Investigate the source of the aconite powder in the lunch boxes of the two deceased persons."
According to previous tests by the police, what the murderer used this time was not the branches and leaves of Aconitum randomly collected from the mountains on the roadside, but the powder obtained by drying the lateral roots of Aconitum similar to specimens and then grinding them.
This kind of drying process is difficult for ordinary people to do. If you carefully investigate the source, you may be able to find some clues.
"yes."
"Well, wooden man, that..."
As soon as the detective nodded, Xiao Karasuma sitting beside him suddenly spoke.
"The aconite powder used by the murderer, I think I may know where I got it from..."
(˙ー˙)
(End of chapter)
